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

Addidional kit. Slotted straight in. Easy to use and set up. Pleased.

It worked perfectly with my other ones so alls good

Works sound, easy to use and it was easy to connect to the hub so no drama, only issue after 2 days battery run out, but flew the pound shop and brought some batterys, had it changed in minutes,since then sweet as a nut,

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.

Really easy to fit and link up to my current alarm system. Needed to replace the old door contact and it was a like for like replacement, so all very straight forward. Peace of mind again.

Good value for money

Good

Very easy to fit, really good piece of kit

Extremely easy to install, easy to replace batteries, and easy to control once set up. The batteries also lasted me a year before I had to replace them so thats a good benefit to these. Not much to it, they do their job properly, no complaints yet even after a year use.

Added on easily and works as expected