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  household sensors & alarms (70 items)

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Yale AC-DC door/window sensor Wireless Door/Window White (5 offers) 
The Yale Door & Window Contact is wireless and easy to pair with your Yale Intruder/ Sync Alarm System, allowing you to extend your system to tailor it to your individual needs. This accessory will...
Columbus McKinnon
AC-DC
from £ 19.02*
per piece
Aqara DW-S02D door/window sensor Wireless Door/Window White (1 offer) 
Aqara Door and Window Sensor P2 is a sensor based on the Thread wireless communication protocol, with a built-in high-precision Hall sensor, which can detect the opening and closing status of objec...
Aqara
DW-S02D
from £ 20.22*
per piece
Aqara T1 door/window sensor Wireless Door/Window White (1 offer)
Aqara
DW-S03D
from £ 13.67*
per piece
Fibaro FGSD-002 smoke detector Optical detector Wireless (1 offer) 
The Fibaro Smoke Sensor is a universal, optical Z-Wave smoke sensor. Fire alarm is signaled by sound, visual indicator blinking and by sending Z-Wave control commands. The optical sensor detects sm...
FIBARO
FGSD-002
from £ 125.69*
per piece
Brennenstuhl RM L 3101 Carbon monoxide detector Interconnectable Wireless (1 offer)
Brennenstuhl
1290210004
from £ 127.26*
per piece
Vertiv RDPS door/window sensor Wired Grey (4 offers) 
Geist RDPS is a magnetic normally-closed dry-contact sensor used to monitor remote door position. Includes 30ft / 9m cable.
Vertiv
RDPS
from £ 35.87*
per piece
Olympia 6106 door/window sensor Wireless White (1 offer) 
To secure windows, patio doors and other glazed areas: The glass breakage sensor detects vibrations on glass panes. When you leave the house, you switch to alarm mode. That means the system sends a...
Olympia
6106
from £ 19.36*
per piece
Homematic IP HmIP-SMI Passive infrared (PIR) sensor Wireless Ceiling/wall White (1 offer)
Homematic IP
142722A0
from £ 40.93*
per piece
Homematic IP HMIP-SMI55-2 Passive infrared (PIR) sensor Wired & Wireless Wall White (1 offer) 
INCREASED COMFORT AND SECURITY Automatic light control when motion is detected. Depending on the brightness in the room, the light is switched on only when it is needed, for greater convenience and...
Homematic IP
156242A0
from £ 49.72*
per piece
Homematic IP 142800A0 door/window sensor Wireless White (1 offer)
Homematic IP
142800A0
from £ 49.45*
per piece
Homematic IP HmIP-SWDO-I door/window sensor Wireless White (1 offer)
Homematic IP
151039A0
from £ 46.64*
per piece
Homematic IP HMIP-SWSD Optical detector Wireless (1 offer)
Homematic IP
142685A0
from £ 46.40*
per piece
Olympia 5964 door/window sensor Wireless White (1 offer) 
Infrared-Light barrier with Doorbell and Alarmfunction for operation with the Olympia Security system Protect 6xxx/9xxx Series - Working principle: Activation by interruption of Infrared-light ray ...
Olympia
5964
from £ 30.52*
per piece
Brennenstuhl PIR 240 Passive infrared (PIR) sensor Wired White (2 offers) 
Automatically switches lamps on and off (incandescent, halogen, energy-saving bulbs and LED lamps) when someone enters the detection zone. - For indoor and outdoor use, IP 44. - Detection angle 240...
Brennenstuhl
1170910
from £ 14.22*
per piece
EnerGenie MIHO048 door/window sensor Wireless White (2 offers) 
Product Description Receive notifications to your smartphone when a door or window is opened/closed, add other Mi|Home accessories [available separately], connect to IFTTT to control other devices,...
EnerGenie
MIHO048
from £ 63.58*
per piece
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