The EVVA AirKey Euro Half Cylinder door lock is a perfect proximity solution for any door that can take a euro cylinder which only requires authorisation checks on one side; it is designed for use with a suitable mortice lock (supplied separately). The AirKey cylinder is easy to install and has a broad range of uses thanks to its euro profile, as it can be used anywhere that a standard euro profile cylinder could be used. Access can be gained from the outside by using your NFC-compatible smartphone (Android or iPhone), where keys can be easily sent using SMS text messages with push notification alerts, bluetooth, and also Evva AirKey key cards. It is rated to IP65 meaning that it is suitable for both indoor and outdoor use with a working temperature between -20°C and +55°C. It is supplied with 2 x CR2 batteries which provide long life for up to 30,000 cycles and are easily replaceable. The unit is CE certified and fire tested to BS EN 1634 for both 30 and 90 minutes.