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, really good piece of kit

Added easily to system and works as expected

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.

Great device. Easy fitted easy configuration

Exactly as described and easy to install

It does not work my tale system

Prodotto di buona fattura ma estremamente costoso.

As described.

Easy to fit, but I had to replace the same one with this one after just over 2 years use, so not impressed with its reliability, hence only 3 stars.

Work well and are easy to link to the alarm controller but rather obtrusive on a window frame. It would be nice if they came in brown as well.