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Smart Thread Contact Sensor

Product Information


Smart Thread Contact Sensor






Smart Sensor



Power Type


  • 【WHAT’S NEW】Onvis contact sensor now is upgraded to support Thread. This greatly improves the sensitivity of the door and window sensors and makes them more stable and reliable. Note: Apple HomePod mini or TV4K2021 is required to build an Apple Thread network.
  • 【Window & Door Sensor For Home Security】Onvis Thread-enabled door sensor works exclusively with Apple HomeKit. Creating home automations with other HomeKit enabled accessories. e.g. with the front door opened, the hallway lights can be turned on automatically.
  • 【Onvis Door Sensor, Keep Your Home and Family Safe】Onvis door sensor will send you notifications when there’s a ON/OFF state change, reminding you whether the door or window is open or closed, 24/7 door sensor will monitor home, office, garage, warehouse and more.
  • 【Low Energy Consumption】The door sensor uses Bluetooth low energy and is powered by CR2450 cell battery, offering low power consumption and 1 year standby time.

Product Specs

Model CT3
Wireless connection Thread + Bluetooth Low Energy 5.0
Operating temperature -10℃~ 45℃ (14℉~113℉)
Operating humidity 5%-95% Relative Humidity
Dimensions Sensor—30 x 46 x 15mm (1.18 x 1.81 x 0.59 inch)
Magnet—12 x 26 x 10.5mm (0.47 x 1.02 x 0.41 inch)
Power 1 CR2450 button cell battery, 650mAh
Battery standby time 1 year
Usage Indoor use only
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