Features: Reliable Open/Close Detection: Guard your home by virtue of reliable open/close detection for doors, window, cabinets, and drawers. Instant Alarm Notification: When something at home is opened in an unexpected way, you will be notified immediately by your smart phone or laptop. Customization: Customize the way your Z-Wave devices communicate with each other: when the front door is opened at night, the welcome lights will be automatically turned on; when the back door is opened unexpectedly, Z-Wave alarm siren will be triggered. Z-Wave Plus: Equipped with a new and improved 500 series chip for faster, safer, and better wireless connection. Continuous Working: Low battery alarm means continuous communication and protection, while the stylish, compact design means only you will know it's there. Strong Compatibility: The door window sensor is compatible with following brand alarm host: fit for Fibaro/Smarthings/Vera/Zipato/Iris/Wink. It can't work alone and need to work with alarm host. Specifications: Brand: NEO COOLCAM Condition: Brand New Material: ABS plastic Color: Shown as picture Optional Type: EU Version, US Version Working Frequency: EU Version: 868.4MHz US Version: 908.4MHz Two State: Open and close Compatible with Z-wave 300 series and 500 series Range: Up to 50m outdoors, 30m indoors Power: CR2 x1 Standby Current: 1uA Battery Life: 2.2 years Working Temperature: 0-40℃ Size: Main Body (L * W * H): Approx.70*20*20mm/2.8*0.8*0.8in Deputy Body (L * W * H): Approx.40*11*11mm/1.6*0.4*0.4in Package List: 1 * Door Window Sensor Alarm Main Body 1 * Door Window Sensor Alarm Deputy Body 1 * Installation Accessory Kit 1 * User Manual