I installed the first one that came out of the bag. It didn't work, removed and installed the second one and it worked as it should. I worked as an alarm technician a few years back so I have installed devices like this many times. These are not as good as the commercial (Ademco) ones but and seem a bit light weight. I expect a good like from these. If it does fail I will get some commercial grade and drill the hole out bigger and replace.These seem like they are worth the money.
UHPPOTE Fire Control Expansion Panel Board For Access Controller With Enhanced Alarm Output
13 Review
Wsdcam Door And Window Alarm For Home Wireless Alarm Security System Magnetic Alarm Sensor Close Door Reminder Loud 110 DB, 4-In-1 Mode Window Alarms 10 Pack
41 Review
Wireless Smart Siren Alarm For Home Security With 110 DB Volume, Panic Alert, Remote Control, And Compatibility With Alexa, Google, Home Assistant, IFTTT - Requires Hub
13 Review
Enhance Your CCTV Security With BlueFishCam'S Waterproof Wide Angle Lens Camera
29 Review
EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
12 Review
VINTAR EU To US Plug Adapter 3-Pack For Easy Travel: Europe To USA Converter For Spain, France, And More, Compatible With Type C/E/F Plugs - European To US Power Adapter Solution
11 Review
TV Tuner LUMAX DV-2120HD
15 Review
Germany France Travel Power Adapter,TESSAN Schuko Plug With 2 USB Ports 2 AC Outlets, US To European Europe German French Spain Iceland Norway Russia Korea Adaptor(Type E/F)
17 Review