These steps will help with installation of the Yale Smart Lock Pro.
Instructions for installing your Yale Smart Lock, in-app setup, and DoorSense™ installation can be found below:
How to Install the Lock
What's in the box

What you'll need
Step 1. Prepare your existing deadbolt
Use the supplied adhesive strip to hold the keyed side of the lock in place.
Step 2. Remove your existing thumb-latch
Unscrew and remove the screws from your existing deadbolt thumbturn. If there is an additional back plate, remove that as well. Be sure to position the thumbturn so that you can access both screws so that you can entirely remove the thumbturn.
Step 3. Prepare the Mounting Plate
The included mounting plate has two adjustable screw-holes that can be repositioned as needed. Remove the screws from the thumb-latch and insert them into the front of the mounting plate.
Step 4. Attach the Mounting Plate
Tighten the screws by hand until the mounting plate is settled securely against the door. PLEASE NOTE: Over-tightening the screws may lead to issues over time.
Step 5. Choose your adapter

Select your adapter from the Compatibility Chart above.
NOTE: The adapters can be placed in the mounting plate backwards. So if the shape is correct, but it seems backwards, try flipping the adapter around.
Step 6. Attach the Correct Adapter
Place the correct adapter onto the tail piece with the small nub pointing up
Step 7. Open the wing latches
Pull out both side wing latches to prepare for mounting.

Step 8. Attach the Yale Smart Lock Pro
Slide the Yale Smart Lock Pro over the tailpiece and attach it to the mounting plate. Make sure the back of the lock is flush with the door. To secure the Yale Smart Lock Pro, clamp down both side wing latches to the mounting plate completely.
Step 9. Remove the faceplate
Press down on the Yale logo located at the bottom of the face plate. Grab the top of the faceplate and remove it.
Step 10. Remove the battery tab
While holding the batteries in place, remove the plastic battery isolation tab. Make sure that the battery is properly seated in its compartment.

Step 11. Replace the faceplate
Place the faceplate back onto the Yale Smart Lock Pro, with the Yale logo at the bottom

Next, follow instructions to set up the device in the
Yale Access App.Select In-App Set Up from the menu.
How to Set Up in the Yale Access App
Download and install the Yale Access App. Select "Get Started" from the home screen, or, if already logged in to the app, select "Set Up a Lock" from the main menu.
Follow in-app instructions to complete set up.
Next, follow installation steps for DoorSense™. Select DoorSense™ Installation from the menu (above).
How to Install DoorSense™
This guide will walk you through the steps of installing DoorSense™ for the Yale Smart Lock Pro, which is the lock pictured below.
Yale provides two options for installing DoorSense™: Surface Mount and Flush Mount. 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 Installation
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.
What’s in the box
What you’ll need to provide
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.

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.
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.
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.
Step 5. Attach the cover
Press the cover onto the DoorSense™ unit.
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 Yale 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 Yale 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.
If you notice that your readings are not accurate over time, perform another Door State Calibration to see improved performance.

Flush Mount Installation
You will need a drill and a ⅝” drill bit for this installation.
If your door frame is hollow metal, a surface mount installation is the preferred method. If you do choose to flush mount the DoorSense™ unit, take extreme care not to drill the hole too large as to let the magnet assembly fall inside.
What’s in the box
What you’ll need to provide
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.
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.
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 top edge of your deadbolt strike plate, centered on the frame.
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.
Step 5. Drill hole
Drill the hole in the proper location on your door frame, keeping the drill straight and steady.
Step 6. 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.
If you notice that your readings are not accurate over time, perform another Door State Calibration to see improved performance.