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

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.

Rather expensive for what you get. However, easy to add to my existing system and the adhesive pads I was worried wouldnt stick were actually very good.

Needed to reglue to door frame after a few weeks but works a treat

Added on easily and works as expected

excellent item - got on a special offer price

Very happy and totally recommend

Absolutely fine

Next day delivery with prime is awesome, and it sensor just connected with existing smart system perectly.

Cheapest from everywhere.Very good deal.

Had no problems with this product, it’s worked exactly as it should, price is fair. It was delivered on time and in good packaging. Happy to recommend