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1
Motion detection sensor: Automatically triggers lights or appliances when movement is detected for improved safety
Light sensor with built-in light: Activates lights when movement occurs and turns them off when the environment is dark, reducing energy use
Remote alerts and voice alarms: Notifies users and triggers Alexa voice alarms for immediate response to detected activity
Ecosystem integration: Works with other SwitchBot devices and major smart home platforms for automated actions
Easy app control: Manages appliance and light automation through the SwitchBot app
Summarized by Shop
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 yo
Contact Sensor Dimensions
70.5 x 25.5 x 23 mm (2.8 x 1.0 x 0.9 in)
Magnet Dimensions
35 x 12 x 12.5 mm (1.4 x 0.5 x 0.5 in)
Contact Sensor Weight with Batteries
49 g (1.7 oz)
Magnet Weight
13 g (0.5 oz)
Connectivity
Wi-Fi
Warranty
2 years
Summarized by Shop
4.6
12 ratings
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Make your door Smart
Great piece of home automation, operate lights etc entry/exit or just by the built in sensor and get notifications when operate
S
Stuart · November 10, 2025
Great reliable contact sensor .
Integrates into HomeKit so ++ via mini hub
T
Tyrone · March 12, 2025
Great devices!
Used two of these to control an electric garage door. So easy to set up! Combined with a contact sensor and it also now auto closes. Now trying to find more things around the house to buy more.