BUYDIG via Rakuten has Nest Detect | Sensor That Looks Out For Doors for $49.00 with free shipping.
- Detects when a door or window opens and closesDetects motion when placed on a door or in a room (up to 15 ft away)
- Easy to install using Nest appSee status of each sensor using Nest app
- Height: 3.2 in (80.5 mm)
- Width: 0.8 in (20.4 mm)
- Depth: 0.9 in (22.2 mm)
- Mass: 1.26 oz (36 g)