Product Description Security Monitoring: Detects door/window openings, enhancing safety for elderly, children, and pets. With the built-in light sensor, it will automatically trigger the Switchbot Bot to turn on the light when someone moves when the environment goes dark. Detects People Leaving or Entering the Home: Recognizes when you leave or enter home, automating appliance control via the SwitchBot app (SwitchBot Hub Mini needed). Remote Alerts & Voice Alarms: Sends phone notifications and triggers Alexa voice alarms if a door opens while you're away (SwitchBot Hub required). SwitchBot Ecosystem Integration: Works with other SwitchBot devices to automate actions, like turning off air purifiers when windows open (SwitchBot Hub required). Product Information and Specs Size: Contact Sensor: 70.5 x 25.5 x 23 mm (2.8 x 1.0 x 0.9 in) Magnet: 35 x 12 x 12.5 mm (1.4 x 0.5 x 0.5 in) Weight: Contact Sensor with batteries: 49g (1.7oz) Magnet: 13g (0.5oz) Warranty SwitchBot Contact Sensor is covered by a 1-year warranty.
