The distance of these two parts shall be less than 3-5 cm when the roller shutter/rolling door is closed.
5 reviews for Wireless Rolling Shutter Door Sensor Garage Gates Magnetic Detector Thickening Switch Anti-theft 433MHz Home Alarm System
D***a
Rated 5 out of 5
January 12, 2026
As described and good for its price. I recommend it.
j***t
Rated 5 out of 5
December 31, 2025
Works very well, but does not have a shock detector in addition to the opening in this configuration.
j***t
Rated 5 out of 5
December 31, 2025
Very good, didn't make me combine with shock, like the other models without sensor offset. Does the job and sensitivity is top.
+1
AliExpress Shopper
Rated 5 out of 5
October 21, 2025
Works perfectly and pairs with the alarm module well A+++
+1
R***r
Rated 5 out of 5
August 23, 2025
Works well. Good wifi range. Instructions a little vague. For pairing follow add video. But little white box attached has battery inside already. Remove back cover and slide switch to on position before pairing. Looks very well built.
5 reviews for Wireless Rolling Shutter Door Sensor Garage Gates Magnetic Detector Thickening Switch Anti-theft 433MHz Home Alarm System