Yale EF-DC Easy Fit Alarm Door/Window Contact, White, DIY Friendly, Accessory for SR & EF Alarms, Suitable for Main Access Points

very easy to fit ay a good price

handy extra sensor for other doors/windows

Working well so far!

Very easy to install and just enough sensors for my small house so you may need to add extras. Really loud alarm. The only negative is the wireless router can be quite noisy when arming.

Didn’t work returned faulty

Great item - Easily connect to the Yale Alarm. Ive used the device on the front door. Clicked learn on the alarm, clicked the button on the device, the two pair up and were good to go. The door opens, the alarm now beeps to make me aware that entry has been gained. Ive tried and tested the alarm with the device by arming the alarm and then walking through the door unlocked and the it brings the street to a standstill with the noise.

Excellent. Battery life short.

Decided to buy extra sensors to put on all the downstairs windows, easily mountable with the included sticky pads (so no holes drilled in my nice new window frames). Easy to pair with the system and works reliably.

I wanted to add to the current system. I saw, I bought, it was delivered, its fitted. I would buy from here again.

Does the job