KEYLESS ENTRY. Forget about ever losing your keys again! Tailored to suit your needs, you can gain access to your property via your key tag, key card, phone tag, or your smartphone. SIMPLE TO FIT. Suitable for most PVC and Composite lift-to-lock doors with a door thickness of 44-70mm. SECURE ENCRYPTION: Uses encrypted Bluetooth technology and features a tamper alarm, so will sound an alarm when someone tries to gain access, offering an additional deterrent. SMARTER TOGETHER: Works with leading voice assistants Google Assistant and Amazon Alexa – ask “Alexa, is my front door locked?” BSI APPROVED. The world's first BSI IOT Kitemark rated smart lock; having undergone rigorous testing including quality, durability and physical attack tests, this lock is secure against advanced hacking methods. Simple to Fit - Requires 1 Screwdriver Four methods of entry - App, Key card, Key tag, phone tag Twist & Go feature (turn your phone 90 degrees to unlock door) Battery operated Connects to Yale Smart Alarm, CCTV range and other leading Smart Home systems