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

Works just as it should and comes with lots of mounting options. Perfect

Replacement so know what to expect

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.

Excellent accessories for Yale Wireless

As described.

Very good worked well with yale smart alarm

Quick delivery, good product

Does the job

Very pleased with item and delivery. They are add on for my Yale alarm

These products are great. I have them installed on every external door in the house. That is my front, back, utility, conservatory and garage door. I have programmed them all to beep on the control panel any time the contact is removed so I know when doors are opened in the house, even if the alarm is set or not. good range on them too. Battery life so far lasted 12 months!