# How to Install: DoorSense™ > DoorSense™ helps you know that your home is secure by keeping track of whether your door is open or closed. By installing DoorSense, you gain access to... Source: https://support.august.com/en_us/what-is-doorsensetm-Hk4vL1A_z Last updated: 2022-06-01T21:43:35.450Z DoorSense™ helps you know that your home is secure by keeping track of whether your door is open or closed. By installing DoorSense, you gain access to: * Door Ajar Alerts * “Instant” Auto-Lock Depending on which lock you have, select either: Install with [Wi-Fi Smart Lock](https://august.com/products/august-wifi-smart-lock), Install with [Smart Lock Pro](https://august.com/products/august-smart-lock-pro-connect), Install with [Smart Lock, 3rd Generation](https://august.com/products/august-smart-lock-connect), or Install with [Connected by August / Yale Access Module](https://august.com/pages/connected-by-august) below for directions to install the device with your lock. There are two ways to install DoorSense: Surface Mount and Flush Mount. If you want to use DoorSense, but prefer not to drill into your doorframe, install Surface Mounted DoorSense using the 3M mounting tape only. **PLEASE NOTE: The DoorSense™ installation position depends on the smart lock model. Be sure to select the correct model before installing the sensor.**  [Install with Wi-Fi Smart Lock](#) [Install with Smart Lock Pro](#) [Install with Smart Lock, 3rd Generation](#) [Install with Connected by August / Yale Access](#) ## DoorSense™ Installation - Wi-Fi Smart Lock This guide provides instructions for installing DoorSense™ with the August Wi-Fi Smart Lock. August provides two options for installing DoorSense™: [Surface Mount](#surface-mount-wi-fi) and [Flush Mount](#flush-mount-wi-fi). How you install DoorSense™ is up to you.   **Surface Mount** **Flush Mount** ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/241c36a22fb62214be618770ac827e48.jpg) ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/733c3810d09df32ebd06083ee3ed7766.jpg) The DoorSense™ will come partially assembled for the surface mount installation with the magnet enclosure inside the housing and you will only need a screwdriver for this installation. [](#surface-mount-wi-fi) ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/658bf166fd107f649edd9ec7058431b5.jpg) ### Surface Mount Installation #### Step 1. Determine mounting location For optimal performance, DoorSense™ should be mounted within 1 to 1.5 inches from the edge of your door frame, and within 1.5 inches from the bottom of the extended deadbolt. PLEASE NOTE: If you do not have a flat door frame or you have a perpendicular wall directly next to your door, the DoorSense™ can be alternatively installed on the perpendicular wall. The deadbolt should still be used as a guide for the recommended height of the DoorSense™ installation. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/d8ba5287d8073948390fe83e9cff673a.jpg) #### Step 2. Attach mounting tape Remove one side of the adhesive backing. Attach to the back of your DoorSense™, making sure to align the edges and screw holes. Remove the other side of the adhesive backing. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/60b37d8d7021a41856ccec8b7edc2e62.jpg) #### Step 3. Place on door frame Press the adhesive side of the DoorSense™ on your frame in the proper identified mounting position. Make sure to align the pill shape vertically. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/584ee5f609d1119f20d437400f14afd3.jpg) #### Step 4. Screw into frame Hand tighten your DoorSense™ to the frame using the included screws. PLEASE NOTE: You may wish to complete this step until after your lock is set up and calibrated to ensure that you are able to retrieve accurate door state readings before modifying your door frame. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/dc7b8c5474da33b023361432e297ec61.jpg) #### Step 5. Attach the cover Press the cover onto the DoorSense™ unit. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/e28e9030280f543cb0df1ba1879c78f8.jpg) #### Step 6. Calibrate your Lock Once the lock is set up, navigate to the Lock Settings and select Calibrate Lock and select LOCK AND DOORSENSE™. Follow the instructions in the app until you have successfully calibrated your August Wi-Fi Smart Lock and DoorSense™ together. Open and close the door and validate that the door state is accurate. If it is not accurate or the calibration was unsuccessful, relocate the DoorSense™ housing closer to the August Wi-Fi Smart Lock and go through the calibration process again until you get accurate results. If you elected to not insert the screws into the door frame, go back and insert the screws into the housing and secure them into your door frame or wall and place the cover over the housing. If you notice that your readings are not accurate over time, perform another Door State Calibration to see improved performance. [](#flush-mount-wi-fi) ### Flush Mount Installation Flush mount installation of DoorSense™ makes the unit less visible because it is installed inside your door frame. A drill and a ⅝” drill bit is needed for flush mount installation. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/33d7e75baf2800511ac0bc1b4b67c193.jpg) PLEASE NOTE: If your door frame is hollow metal, a surface mount installation is the recommended installation method. If you still choose to flush mount the DoorSense™ unit on a hollow metal door frame, take extreme care not to drill the hole too large as the magnet may fall inside your door frame. #### Step 1. Remove magnet from housing For flush mount installation, remove the magnet carrier from the DoorSense™ housing. This can be done using a small blunt object to push the magnet carrier from the housing through the center hole. This may require some force. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/87f48f0d165ecfa8d7fade64ec25559f.jpg) #### Step 2. Affix magnet to cap Expose the adhesive by removing the blue backing. Press the cap onto the notched side of the magnet carrier. The two shapes should interlock. ![remove magnet from housing](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4e9868355145875fffd55b3dcce46c15.jpg) #### Step 3. Determine mounting location DoorSense™ will be flush mounted into the frame of your door, so your Smart Lock swings away when the door is opened. DoorSense™ should be mounted no more than1 to 1.5 inches from the edge of your deadbolt strike plate, centered on the frame. ![determine mounting location flush mount](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/71baa952877df7fc458906c6177586e6.jpg) #### Step 4. Tape drill bit It may be helpful to attach tape to your drill bit to mark the proper depth of hole to drill. DoorSense™ requires a 1/2 inch deep hole, but it may help to use the assembled DoorSense™ as a guide. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/7be3441ccd122b3ed6278856470be3f0.jpg) #### Step 5. Drill hole Drill the hole in the proper location on your door frame, keeping the drill straight and steady. ![drill hole](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/830c8dc9b7e359cb90e11425338ad6e4.jpg) #### Step 6. Insert DoorSense™ into hole Insert the DoorSense™ into the hole. If it is too snug to insert by hand, protect the unit with a piece of scrap wood and lightly tap the unit into place with a hammer or mallet. ![push doorsense into hole](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/e1e367863207e7bbb2a77fce498e6dfa.jpg) Congratulations! This completes DoorSense™ installation. If you notice that your readings are inaccurate over time, perform another Door State Calibration to improve performance. ## DoorSense™ Installation - Smart Lock Pro Positioning DoorSense™ appropriately depends on the version of August Smart Lock that you are installing it with. This guide provides instructions for installing DoorSense™ with the Smart Lock Pro, which is pictured throughout. August provides two options for installing DoorSense™: [Surface Mount](#surface-mount-pro) and [Flush Mount](#flush-mount-pro). How you install DoorSense is up to you. Review the image below to determine which mounting style works best for your doorway. [](#surface-mount-pro) ### Surface Mount Installation The DoorSense™ comes partially assembled for the surface mount installation with the magnet enclosure inside the housing. A screwdriver is the only additional tool needed for surface mount installation. #### What’s in the box ![phillips screwdriver](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/68173554ceae0cd32c3c960277f48bea.jpg) #### What you’ll need to provide ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/2c8fd1d6cc0c3dc2fc8ddaad323f824c.jpg) #### Step 1. Determine mounting location For optimal performance, DoorSense™ should be mounted within 1.5 inches from the edge of your door frame, and within 1.5 inches from the top of the extended deadbolt. If your deadbolt is located more than 1.5 inches from your door frame, you may experience issues calibrating DoorSense™. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/789a249f6fe8517f45349394a4306316.jpg) PLEASE NOTE: If you do not have a flat door frame or you have a perpendicular wall directly next to your door, the Door Sense can be alternatively installed on the perpendicular wall. The deadbolt should still be used as a guide for the recommended height of the DoorSense™ installation. #### Step 2. Attach mounting tape Remove one side of the adhesive backing. Attach to the back of your DoorSense™, making sure to align the edges and screw holes. Remove the other side of the adhesive backing. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/60b37d8d7021a41856ccec8b7edc2e62.jpg) #### Step 3. Place on door frame Press the adhesive side of the DoorSense™ on your frame in the proper identified mounting position. Make sure to align the pill shape vertically. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/48a9ffb03f80029421c56b9dea3fd01d.jpg) #### Step 4. Screw into frame Hand tighten your DoorSense™ to the frame using the included screws. PLEASE NOTE: You may wish to complete this step after your lock is set up and calibrated to ensure that you are able to retrieve accurate door state readings before modifying your door frame. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/a77641280221d373e347a4d535b5bf5d.jpg) #### Step 5. Attach the cover Press the cover onto the DoorSense™ unit. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/42f74e47da70a597ae589865553eb7d8.jpg) #### Step 6. Calibrate your Lock Once the lock is set up, navigate to the Lock Settings and select Calibrate Lock and select LOCK AND DOORSENSE. Follow the instructions in the app until you have successfully calibrated your August Smart Lock Pro and DoorSense™ together. Open and close the door and validate that the door state is accurate. If it is not accurate or the calibration was unsuccessful, relocate the DoorSense™ housing closer to the August Smart Lock Pro and go through the calibration process again until you get accurate results. If you elected to not insert the screws into the door frame, go back and insert the screws into the housing and secure them into your door frame or wall and place the cover over the housing. Congratulations! This completes DoorSense™ installation. If you notice that your readings are inaccurate over time, perform another Door State Calibration to improve performance. [](#flush-mount-pro) ## Flush Mount Installation Flush mount installation of DoorSense™ makes the unit less visible because it is installed inside your door frame. A drill and a ⅝” drill bit is needed for flush mount installation. PLEASE NOTE: If your door frame is hollow metal, a surface mount installation is the recommended installation method. If you still choose to flush mount the DoorSense™ unit on a hollow metal door frame, take extreme care not to drill the hole too large as the magnet may fall inside your door frame. #### What’s in the box ![phillips screwdriver](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/68173554ceae0cd32c3c960277f48bea.jpg) #### What you’ll need to provide ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4a4beff928aa23828080c17b8834007d.jpg) #### #### Step 1. Remove magnet from housing For flush mount installation, remove the magnet carrier from the DoorSense™ housing. This can be done using a small blunt object to push the magnet carrier from the housing through the center hole. This may require some force. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/87f48f0d165ecfa8d7fade64ec25559f.jpg) #### Step 2. Affix magnet to cap Expose the adhesive by removing the blue backing. Press the cap onto the notched side of the magnet carrier. The two shapes should interlock. ![remove magnet from housing](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4e9868355145875fffd55b3dcce46c15.jpg) #### Step 3. Determine mounting location DoorSense™ will be flush mounted into the frame of your door, so your Smart Lock swings away when the door is opened. DoorSense™ should be mounted no more than 1.5 inches from the bottom edge of your deadbolt strike plate, centered on the frame. ![determine mounting location flush mount](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/da35837ef3aaf5ad406f37b62a221816.jpeg) #### Step 4. Tape drill bit It may be helpful to attach tape to your drill bit to mark the proper depth of hole to drill. DoorSense™ requires a 1/2 inch deep hole, but it may help to use the assembled DoorSense™ as a guide. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/7be3441ccd122b3ed6278856470be3f0.jpg) #### Step 5. Drill hole Drill the hole in the proper location on your door frame, keeping the drill straight and steady. ![drill hole](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/6f603c86e2c715e20abe8c5bb0a3bf42.jpeg) #### Step 6. Insert DoorSense™ into hole Insert the DoorSense™ into the hole. If it is too snug to insert by hand, protect the unit with a piece of scrap wood and lightly tap the unit into place with a hammer or mallet. ![push doorsense into hole](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/e1e367863207e7bbb2a77fce498e6dfa.jpg) Congratulations! This completes DoorSense™ installation. If you notice that your readings are inaccurate over time, perform another Door State Calibration to improve performance. ## DoorSense™ Installation - Smart Lock, 3rd Generation Positioning DoorSense™ appropriately depends on the version of August Smart Lock that you are installing it with. This guide provides instructions for installing DoorSense™ with the 3rd Generation August Smart Lock. August provides two options for installing DoorSense™: [Surface Mount](#surface-mount) and [Flush Mount](#flush-mount). How you install DoorSense™ is up to you. Review the image below to determine which mounting style works best for your doorway. ![surface mount and flush mount smart lock 3rd gen](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/0a30b2386a1c871115e009f964d11a3a.jpeg) [](#surface-mount) ### Surface Mount Installation The DoorSense™ comes partially assembled for the surface mount installation with the magnet enclosure inside the housing. A screwdriver is the only additional tool needed for surface mount installation. #### What’s in the box ![included with doorsense](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/3676b091e30649aca08b651e830f0bf4.jpg) #### What you'll need to provide ![phillips screwdriver](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/9d59adc11e96e83ca9793d06a4e16469.jpg) #### 1\. Determine mounting location For optimal performance, DoorSense™ should be mounted within 1.5 inches from the edge of your door frame, and within 1.5 inches from the top of the extended deadbolt. If your deadbolt is located more than 1.5 inches from your door frame, you may experience issues calibrating DoorSense™. ![determine mounting location](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/cec15025e0642fe61253528b05cfc2a0.jpg) NOTE: If you do not have a flat door frame or you have a perpendicular wall directly next to your door, the DoorSense™ can be alternatively installed on the perpendicular wall. The deadbolt should still be used as a guide for the recommended height of the DoorSense installation. #### 2\. Attach mounting tape Remove one side of the adhesive backing. Attach to the back of your DoorSense™, making sure to align the edges and screw holes. Remove the other side of the adhesive backing. ![attach mounting tape](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/c97f065b87726d574e89b19283cd7db5.jpg) #### 3\. Place on door frame Press the adhesive side of the DoorSense™ on your frame in the proper identified mounting position. Make sure to align the pill shape vertically. ![position doorsense with mounting tape](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/c0731412577a504e813071f14e779f44.jpg) #### 4\. Screw into frame Hand tighten your DoorSense™ to the frame using the included screws. PLEASE NOTE: You may wish to complete this step after your lock is set up and calibrated to ensure that you are able to retrieve accurate door state readings before modifying your door frame. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/b3052f15c440ffe5b47d3eb9e20c9144.jpeg) #### 5\. Attach the cover Press the cover onto the DoorSense™ Unit. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/ff47bdc2c0bc15c31454e4f14a82c337.jpeg) #### 6\. Calibrate your Lock Once the lock is set up, navigate to the Lock Settings and select Calibrate Lock and select LOCK AND DOORSENSE. Follow the instructions in the app until you have successfully calibrated your August Smart Lock and DoorSense™ together. Open and close the door and validate that the door state is accurate. If it is not accurate or the calibration was unsuccessful, relocate the DoorSense™ housing closer to the August Smart Lock and go through the calibration process again until you get accurate results. If you elected to not insert the screws into the door frame, go back and insert the screws into the housing and secure them into your door frame or wall and place the cover over the housing. Congratulations! This completes DoorSense™ installation. If you notice that your readings are inaccurate over time, perform another Door State Calibration to improve performance. [](#flush-mount) ### Flush Mount Installation [](#flush-mount) Flush mount installation of DoorSense™ makes the unit less visible because it is installed inside your door frame. A drill and a ⅝” drill bit is needed for flush mount installation. PLEASE NOTE: If your door frame is hollow metal, a surface mount installation is the recommended installation method. If you still choose to flush mount the DoorSense™ unit on a hollow metal door frame, take extreme care not to drill the hole too large as the magnet may fall inside your door frame. #### What’s in the box ![phillips screwdriver](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/68173554ceae0cd32c3c960277f48bea.jpg) #### What you’ll need to provide ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4a4beff928aa23828080c17b8834007d.jpg) #### 1\. Remove magnet from housing For flush mount installation, remove the magnet carrier from the DoorSense™ housing. This can be done using a small blunt object to push the magnet carrier from the housing through the center hole. This may require some force. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/87f48f0d165ecfa8d7fade64ec25559f.jpg) #### 2\. Affix magnet carrier to circular cap Expose the adhesive by removing the blue backing from the circular DoorSense™ cap. Press the cap onto the notched side of the magnet carrier. The two shapes should interlock. ![remove magnet from housing](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4e9868355145875fffd55b3dcce46c15.jpg) #### 3\. Determine mounting location DoorSense™ is flush mounted into the frame of your door, so your Smart Lock swings away when the door is opened. DoorSense™ should be mounted no more than 1.5 inches from the bottom edge of your deadbolt strike plate, centered on the frame. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/9205f526644921d93ab810bf86296176.jpg) #### 4\. Tape drill bit It may be helpful to attach tape to your drill bit to mark the proper depth of hole to drill. DoorSense™ requires a 1/2 inch deep hole, but it may help to use the assembled DoorSense™ as a guide. ![tape drill bit](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/30b62e218db2565582a51a9eae22c9c2.jpg) #### 5\. Drill hole Drill the hole in the proper location on your door frame, keeping the drill straight and steady. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/d32bc05e5b832b61d6cf8727c3af55af.jpg) #### 6\. Insert DoorSense™ into hole Insert the DoorSense™ into the hole. If it is too snug to insert by hand, protect the unit with a piece of scrap wood and lightly tap the unit into place with a hammer or mallet. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/fd548183661e495f06b55082e51b266e.jpg) Congratulations! This completes DoorSense™ installation. If you notice that your readings are inaccurate over time, perform another Door State Calibration to improve performance. ## DoorSense™ Installation - Connected by August / Yale Access DoorSense™ allows you to detect if your door is open or closed. First, decide how you would like to install the DoorSense™. August provides two options for installation: a surface mount and a flush mount installation. The surface mount installation requires the use of a screwdriver only. The flush mount installation will provide a cleaner and less visible look with more robust performance, but does require drilling a ⅝” hole into your door frame. ![surface mount doorsense connected by august locks](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/2775cee356c5c9f6758f66d2362f2cfa.jpg) ![flush mount doorsense connected by august locks](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/5beeb0aaad45eb78294a27ea57d26957.jpg) ### Surface Mount Installation #### What's in the box ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/2d218a3ff739f009d0b3e53a4c2dfd01.jpg) #### What you'll need ![phillips screwdriver](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/1ff7ec92576308ac9cdd395d38500055.jpg) #### Step 1. Determine mounting location For optimal performance, DoorSense™ should be mounted within 1.5 inches from the edge of your door frame, and should align with your lock’s August module. NOTE: If you do not have a flat door frame or you have a perpendicular wall directly next to your door, the DoorSense™ can be alternatively installed on the perpendicular wall. The module should still be used as a guide for the recommended height of the DoorSense™ installation. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/4fc2b839cf3b5b4724d7e04f44e7e492.gif) #### Step 2. Attach mounting tape Remove one side of the adhesive backing. Attach to the back of your DoorSense™, making sure to align the edges and screw holes. Remove the other side of the adhesive backing. ![attach mounting tape](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/78a95ca0677d57f1d678233b991da0f8.jpg) #### Step 3. Place on door frame Press the adhesive side of the DoorSense™ on your frame in the proper identified mounting position. Make sure to align the pill shape vertically. ![determine mounting location](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/42f909a7615d405b98ee4f1ecb7422f1.gif) #### Step 4. Screw into frame Hand tighten your DoorSense™ to the frame using the included screws. You may wish to complete this step until after your lock is set up and calibrated to ensure that you are able to retrieve accurate door state readings before modifying your door frame. ![screw into frame (optional)](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/edd24d5518d7c58b2a773d5bc4ef7306.gif) #### Step 5. Attach the cover Press the cover onto the DoorSense™ unit. ![attach the cover](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/a9c23e780eb30cff72e486ddd4ecb09a.gif) #### Step 6. Calibrate your Lock Once the lock is set up, navigate to the Lock Settings and select Calibrate Lock and select LOCK AND DOORSENSE™. Follow the instructions in the app until you have successfully calibrated your August Smart Lock and DoorSense™ together. Open and close the door and validate that the door state is accurate. If it is not accurate or the calibration was unsuccessful, relocate the DoorSense™ housing closer to the smart lock and go through the calibration process again until you get accurate results. If you elected to not insert the screws into the door frame, go back and insert the screws into the housing and secure them into your door frame or wall and place the cover over the housing. If you notice that your readings are not accurate over time, perform another Door State Calibration to see improved performance. ### Flush Mount Installation #### What's in the box ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/fd21c74931ebdaddfe418dc50afc956a.jpg) #### What you'll need ![tools needed to install - 5/8" drill bit, electric drill](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/fac916a9c63a389dd2b99c41d0fd76a6.jpg) #### Step 1. Remove magnet from housing Using a small blunt object, push the magnet carrier from the housing through the center hole. This may require some force. ![remove magnet from housing](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/51b712cef186c32a5292a325c8c1dbd6.gif) #### Step 2. Assemble magnet to cap Expose the adhesive by removing the blue backing. Press the cap onto the notched side of the magnet carrier. The two shapes should interlock. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/2023722eff3c69f3d6912ceefa425450.gif) #### Step 3. Mount in the frame DoorSense™ will be flush mounted into the frame of your door, so your smart lock swings away when the door is opened.  DoorSense should align with the lock’s Connected by August / Yale Access module. #### Step 4. Determine mounting location Hand tighten your DoorSense™ to the frame using the included screws. DoorSense™ should be mounted between 1.5” and 3.5” from the top edge of your deadbolt strike plate, centered on the frame. DoorSense™ should align with the lock’s Connected by August / Yale Access module (see image above for guidance). ![determine mounting location](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/3b0a7d1d6125b7e8dc74b7fc0d7894ac.gif) #### Step 5. Tape drill bit It may be helpful to attach tape to your drill bit to mark the proper depth of hole to drill. DoorSense™ requires a 1/2 inch deep hole, but it may help to use the assembled DoorSense™ as a guide. ![tape drill bit](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/44db058b36d3399fc9fe45450f07c731.jpg) #### Step 6. Drill hole Drill the hole in the proper location on your door frame, keeping the drill straight and steady. ![drill hole](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/c64f37f28ab841168a9c0565882b4fd0.jpg) #### Step 7. Insert DoorSense into hole Insert the DoorSense™ into the hole. If it is too snug to push in by hand, you can protect the frame with a piece of scrap wood and use light blows with a hammer or mallet. ![](https://cdn.prod2.kustomerhostedcontent.com/media/5f6cab56313fd9001af97923/f5d963b56c89111ceb9979bf4b9a866e.jpg) #### Step 8. Calibrate your Lock Once the lock is set up, navigate to the Lock Settings and select Calibrate Lock and select LOCK AND DOORSENSE™. Follow the instructions in the app until you have successfully calibrated your August Smart Lock and DoorSense together. Open and close the door and validate that the door state is accurate. If it is not accurate or the calibration was unsuccessful, relocate the DoorSense housing closer to the August Smart Lock and go through the calibration process again until you get accurate results. If you elected to not insert the screws into the door frame, go back and insert the screws into the housing and secure them into your door frame or wall and place the cover over the housing. If you notice that your readings are not accurate over time, perform another Door State Calibration to see improved performance. #### Troubleshooting DoorSense™ August’s DoorSense™ technology uses magnetic fields to help determine the state of your door as open or closed. Therefore any changes to the magnetic field surrounding the lock may affect the accuracy of the DoorSense™ readings. This can include removing and replacing the front faceplate or bringing another magnet into the range of the lock. If you notice that your door state is inaccurate, you should go into your Lock Settings and Calibrate your Lock and DoorSense™. #### Related Products: * [DoorSense™](https://august.com/pages/parts) * [Wi-Fi Smart Lock](https://august.com/products/august-wifi-smart-lock) * [Smart Lock Pro](https://august.com/products/august-smart-lock-pro-connect) * [August Smart Lock](https://august.com/products/august-smart-lock-connect) * [Connected by August / Yale Access](https://august.com/pages/connected-by-august) ## Related Articles ##### Smart Lock Recalibration August Smart Locks must be calibrated properly for optimal performance. During the initial setup, follow the steps to ensure the lock is calibrated accordi...  [View more](https://support.august.com/smart-lock-recalibration-Syr4KdnaV)   ##### How to Use Intelligent Auto-Lock with DoorSense™ With the 3rd generation August Smart Lock, you still have Auto-Lock capability, meaning your lock can automatically lock itself after a specified time period...  [View more](https://support.august.com/intelligent-auto-lock-with-doorsensetm-S1mg1DI1A_f)   ##### How to Enable Auto-Lock The Auto-Lock feature enables your door to lock automatically after a predetermined amount of time (up to 30 minutes) has passed...  [View more](https://support.august.com/how-do-i-enable-auto-lock-BkICUL1ROG)