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

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

We are very pleased that our house is even safer now than it was before. Great system.

Easy to fit and program ..spot on

Just the job and quickly sent.

Excellent product

Does the job

Very easy to pair with the system and easy to fit.

Excellent add on to alarm system

This was just a replacement to existing damaged contactor. Had no problem setting up with existing alarm.

Excellent