Yale/August Door Sense is a top of the line door ajar sensor intended for use with August and Yale smart locks. Installing this powerful little tool will enable immediate auto-lock functionality, door ajar alarm and other high level features available on your August or Yale smart lock module. Installation and mating with your lock is simple and involves drilling a small hole and securing two screws and sticky tape.

Compatible with Yale and August models: 

August ASL3B, August ASL05, Yale YRD 216, YRD 226, YRD 256, YRL 216, YRL 236, and YRL 256 AND OTHERS

Please check your model carefully for compatibility before ordering and do not hesitate to reach out with any questions.