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

Had these fitted a while now, no problems

Absolutely fine

broken weeks after I got it i opened it to check battery wasnt loose as alarm was saying battery low so I was checking all batteries and the spring on the sensor came of leaving item unusable

good

It works just follow the instructions

Easy to add. Less than 5 minutes to get it working.

Cheapest from everywhere.Very good deal.

Did not work waste of money

Perfetto. Arrivato nei tempi previsti. Semplicissimo da agganciare al sistema d’allarme.

Quick delivery, good product