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

Excellent. Battery life short.

Just Yale.

Great range easy installation

Easy to set up with rest of smart living system

Good quality product

Bought these as an extra.....Easy to fit and add to youre system.

I have the Yale Smart Living Home Security System, that I purchased in the UK and brought the System over to Spain, where I now live. I wanted to have a spare Door/Window Contact. It took nearly 3 months to be delivered to my address in Spain, as the goods were detained in Customs, until additional paperwork was supplied. Pleased to have had it finally delivered. It is a good home security system.

does what it is supposed to do. Easy to fit.

Easy to install

works perfectly and so simple to install