Door & Window Sensors

2 x Defender Door Wedge Alarm Adjustable Sensitivity and On/Off Switch, 120dBs SirenWhen armed and positioned behind a door it will sound a powerful siren if someone attempts to open the door.Sensitivity adjustment120dBs sirenOn/off switchDual use -...

2 x Defender Wireless Door Handle Hanging Intruder Alarm, Movement Detector, White Sounds an impressive 125dBs siren as potential intruders try the door handle. Features a sensitivity adjustment and exit delay.3 x AAA batteries (supplied)125dBs sirenFor...

3 x Defender Door Wedge Alarm Adjustable Sensitivity and On/Off Switch, 120dBs SirenWhen armed and positioned behind a door it will sound a powerful siren if someone attempts to open the door.Sensitivity adjustment120dBs sirenOn/off switchDual use -...

3 x Defender Wireless Door Handle Hanging Intruder Alarm, Movement Detector, White Sounds an impressive 125dBs siren as potential intruders try the door handle. Features a sensitivity adjustment and exit delay.3 x AAA batteries (supplied)125dBs sirenFor...

6 x Defender Door Wedge Alarm Adjustable Sensitivity and On/Off Switch, 120dBs SirenWhen armed and positioned behind a door it will sound a powerful siren if someone attempts to open the door.Sensitivity adjustment120dBs sirenOn/off switchDual use -...

6 x Defender Wireless Door Handle Hanging Intruder Alarm, Movement Detector, White Sounds an impressive 125dBs siren as potential intruders try the door handle. Features a sensitivity adjustment and exit delay.3 x AAA batteries (supplied)125dBs sirenFor...

Defender Door Wedge Alarm Adjustable Sensitivity and On/Off Switch, 120dBs SirenWhen armed and positioned behind a door it will sound a powerful siren if someone attempts to open the door.Sensitivity adjustment120dBs sirenOn/off switchDual use - alarmed...

Defender Mini Door Chime & Intruder Deterrent Alarm, 120dBs Siren LR44 BatteriesUses magnetic field technology to identify when a door or window has been opened.Siren or welcome chime120dBs sirenSelf adhesive warning stickerLow battery indicatorQuick and...

Defender Wireless Door Handle Hanging Intruder Alarm, Movement Detector, White Sounds an impressive 125dBs siren as potential intruders try the door handle. Features a sensitivity adjustment and exit delay.3 x AAA batteries (supplied)125dBs sirenFor use...