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

Easy to set up with rest of smart living system

Added to our system and work perfectly. Batteries run out quite quickly

This was a replacement unit for a faulty one. The specification is and exact match for the one it replaced and fits in the previously hole drilled in the door.

Good

Reliable worked first time.

good

I bought this to add to the new system I was having in stalled.

Good value for money

second purchase of these additions for my alarm system, easy to install and set up, no problems as long as you get the 2 components as close as possible without them damaging each other.

This was a replacement as the magnet on my old one failed. It would be good if you could buy the magnet separately.