SwitchBot Official Website - Your Simple Switch to a Smart Home – SwitchBot International

SwitchBot Contact Sensor

SwitchBot Contact Sensor - Main image
$8.49 $16.99 In stock

Category: Products

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.

Customer Reviews (4.2 / 5 · 5 reviews)

Hannah ★★★★★

Setup took me under five minutes and now I get a phone alert the second the back door cracks open, which is exactly what I needed for peace of mind with my toddler roaming around. The built-in light sensor even fires the hallway lamp automatically when that door opens at night, so it's doing double

Natalie Y. ★★★★★

Setup was painless thanks to the adhesive backing, and the magnetic sensor pairs with the hub in seconds. I love that the built-in light sensor means the smart lights come on the moment I crack the door at night, no extra motion detector needed.

Michael ★★★★★

Finally got around to setting this up on the back door, and the built-in light sensor is a nice touch—it only triggers the alarm at night, so I don't get false alerts during the day when the dog bumps it. The app notification was instant when I opened it for a test, and it's already given me peace o