A motion sensor or motion detector can sound an alarm when motion is detected or even turn on a light as you walk in the door.
Smart door alarm sensor.
5 0 out of 5 stars 4 ratings based on 4 reviews current price 17 23 17.
Door sensors add peace of mind.
Ai cluster door sensor can help you to monitor the status of door window through smart phone get alerts when doors or windows are opened or closed.
Product title 10x wireless home window door burglar security alarm system magnetic sensor average rating.
Ring alarm door window contact sensor 2 pack 2nd gen model 4sd2sz 0en0 view the home alarm security system 39 99 39 99.
Current price 10 32 10.
Smart door sensors 1 4 mile world s longest range wireless window door sensor work with alexa ifttt smartphone monitor app alerts open reminder smart home security kit 4 packs yolink hub included 4 5 out of 5 stars 269 62 99 62 99 get it as soon as fri sep 11.
Globe electric wi fi wireless no hub required voice activated smart battery operated door and window sensor in white model 50017 view the globe smart home collection 24 74 24 74.
0 out of 5 stars based on 0 reviews.
Unique battery powered design allows discrete sensor placement and mounting on doors and windows.
4 7 out of 5 stars based on 3 reviews 3 ratings.
23 list list price 32 17 32.