If you are looking for a magnetic door sensor, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color: White -Material: ABS -Size: 8.20X4.20X1.60cm/3.22X1.65X0.63in Note: random sign Battery type：2 x AA (not included) Stand by current：open:28.4uA close:28.1uA Trigger current：43mA Pairing current: 37mA Working time：4000 times Operating temperature：0 degree centigrade - 40 degree centigrade (32°F - 104°F) Operating Humidity：20% - 85% Storage Temperature：0 degree centigrade - 60 degree centigrade (32°F - 140°F) Storage Humidity：0% - 90% Type: 2.4GHz Protocol: 802. / distance: 45m - It is manufactured with professional technology to ensure the of the product and can work for a long time. - Alerting you from anywhere with real-time notification when the door or window is opened. - The magnetic sensor can detect your doors or activities and send notification to your . - This door sensor is suitable for window, door, cabinet, drawer, and etc. - Multi-purpose, , apartment, home, office, hotel room, garage, etc. Package list: 1 x door alarm