SHARED DEVICES: WiFi motion sensor alarm is more secure. You can connect the phone (Tuya) to share the device with other family members. When a sensor alarm, all family members receive the alert message on phones at the same time, so they will not stop receiving the alert in time. WIDELY APPLICATIONS: WiFi smart motion sensor alarm motion detector can be used to monitor and protect your outdoor/indoor property. Such as driveways, front porches, gates, swimming pools, garages, sheds, etc. Sensors work well at any time of year. The operating temperature range is -30 to 150 degrees Fahrenheit. REMOTE CONTROL AND MOBILE APP: The remote control and phone can control the infrared motion sensor alarm at the same time, no matter where you are, you can control the central alarm unit and receive alert messages. 2 ALARM OPTIONS: Alarm chime/door bell. The door motion sensor can be powered by 3 AAA batteries (NOT included, and the battery can only be used as backup and eight hours), Weight: 0.48060773116 pounds, Manufacturer: Rtxbvg