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_DealGroup版 - 【$】Wireless Magnetic Sensor Door/ Window Entry Safety Security Burglar Alarm Bell for $0.98 Free shipping
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话题: magnetic话题: sensor话题: alarm话题: door话题: window
1 (共1页)
w*******y
发帖数: 60932
1
Features:
- Super loud 90 dB alarm
- 100% brand new alarm for window or door
- Compact design, no wiring required
- Magnetism control design with steady capability
- High sensitivity can be used to protect people against stealing
- Easily mounted to windows or doors with included double-side adhesive tape
- Electronic magnetic Sensor detects entry
- Alarm is activated when the two pieces are separated
- Turn the switch to ON it sets up defense
- When someone enters or opens a door, it will send out loud voice to
frighten him and warn the master
- Ideal choice to guard against thefts in house, schools, offices, and some
other places
- Powered by 3 pcs 1.5V LR44 button cell
Operation Instruction:
Peel off the adhesive tape, attach the main sensor on the door / window
and attach the magnetic stick adjacent the main sensor on the frame(the
arrowhead side to the sensor).
Test the setup by switching on the system and see whether the alarm can be
triggered by opening the door / window
Package Includes:
1 x Magnetic sensor
1 x Magnetic stick
3 x LR44 button battery
LINK:
http://www.chinabuye.com/wireless-magnetic-sensor-door-window-e
1 (共1页)
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话题: magnetic话题: sensor话题: alarm话题: door话题: window