Does it work with sliding doors?

I would say yes - the sensor and magnetic contact are separate - when sticking on try without removing the adhesive backing on either the magnet or sensor to get the correct position - when you have mark lightly with a pencil and then apply - mine work great and still give me a shock (with the noise) when i forget to flick the switch off. Hope it works well for you

When i installed the alarm on my door, i switched it on and it is continously making the alarm sound?? What do i do to stop it?

Hi Ashley, possible because the gap between the alarm and little strip is larger than 10mm. if so, the only way to stop it is to switch off.

Do both sections have to be at the same level as my door has a trim/lip which is 1.5cm higher

They have to be level and in line I glued a piece of wood on frame to line up works great

Battery life since august 21 I have changed the batteries 3 times .The alarm has never been triggered, except when installed

I can only say that my alarms are all working OK and the batteries i have never changed since arriving about 4 months ago. Do you check they are working on a weekly period. If you have a spare 1 then leave set up in your home side by side. And check to see what's going on...

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🚪🔔 Secure your space with silent style and loud protection!

EFFORTLESS SETUP - No wiring or screws—just peel and stick in seconds
SLEEK DISCREET - Ultra-slim profile fits seamlessly on any door or window
DUAL PURPOSE SAFETY - Protects your home and keeps kids safe from unnoticed exits
INSTANT INTRUDER ALERT - 120 dB alarm instantly deters unwanted entry
BATTERY READY CONVENIENCE - Includes batteries and low battery indicator for hassle-free use

The Noopel Door Window Alarm 2 Pack offers a powerful 120 dB wireless magnetic sensor alarm in an ultra-slim design. Easy to install with adhesive mounts and no wiring, it provides instant alerts for doors and windows opening beyond 1 cm. Perfect for home, office, or apartment security, it also helps monitor children’s movements. Batteries are included, and a low battery indicator ensures continuous protection.

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Battery description	battery_type_LR44
Voltage	1.5 Volts
Control method	Touch
Noise level	120 dB
Mounting type	Adhesive Mount
Sensor technology	Contact Sensor
UPC	765629470862
Manufacturer	Noopel
Part Number	RK-KDS3-FBMM
Product Dimensions	7.3 x 3.5 x 1 cm; 32 g
Item model number	MCJBQ820
Installation method	Self-Adhesive
Item Package Quantity	2
Switch style	Slide switch
Batteries included?	No
Batteries Required?	No
Item Weight	32 g

Door Window Alarm 2 Pack Noopel Home Security Ultra-Slim Wireless Magnetic Sensor Burglar Anti-theft 120DB Alarm with Batteries included - DIY EASY to Install

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