. Get alerts straight to your smart phone any time a door or window is opened with the Ring Alarm Contact Sensor. Installation is simple – no need to call out an electrician – just stick some batteries in & use the self-adhesive pads to place it on your door or window frame. Also the two halves of the sensor can be placed up to a maximum distance of 1.27cm away from each other meaning theyll still work if you have a bit of gap between the door & the frame. & not only is it compatible with Amazon Alexa but itll work even if the Wi-Fi is out because it uses Z-Wave wireless tech instead. Please note to use the Ring Alarm Contact Sensor youll need to download the free Ring app which is compatible with all i OS & Android devices. Youll also need the Ring Alarm Security Kit (sold separately). Key Features. Smart sensor
- get alerts when a window or door opens Compatible with Amazon Alexa Uses Z-Wave wireless tech up to a distance of 76m Easy to install with self-adhesive pads & batteries The 2 sensor halves can be placed up to 1.27cm apart. Product Specifications.
Dimensions (H)8.0 x (W)2.7 x (D)2.1 cm Bridge Included No
- Requires Ring Alarm Base Station Installation DIYManufacturer Warranty 1 Year..