Yale Smart Door Lock, Conexis L2, Chrome Part of the Yale Home Smart Ecosystem, the Conexis L2 Smart Lock gives you full control of your home security, giving you complete peace of mind that your home is secure. Forget about losing your keys once and for all. KEYLESS ENTRY. Tailored to suit your needs, gain access to your property via key tag, key card, phone tag, or your smartphone using the Yale Home App. SIMPLE TO FIT. Suitable for most PVC and Composite lift-to-lock doors ACCESS FROM ANYWHERE: The Yale Home App provides real-time notifications in the event your door is unlocked. REMOTE ACCESS MONITORING. Send secure keys to friends, family or people you trust instantly, all from the Yale Home app. Cancel user access any time. SECURE ENCRYPTION: Uses encrypted Bluetooth technology and features a tamper alarm that sounds when tampered with. 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 Kitemark rated smart lock; this lock is secure against advanced hacking methods as well as physical attack tests. BATTERY OPERATED 4x AA batteries are included and an alert is given when the batteries are running low. SATISFACTION GUARANTEED. 2 year manufacturers warranty.