In less than 6 months all 3 of them I bought started giving false alarms too often. The first in our bedroom started a few months after purchase. The batteries showed almost full capacity when they started to run out (the battery level is reported to Smart Things via ZWave), and none of them showed less than 79%. There was no smoke or other occurrences in our home. Conditions weren't particularly dusty and 2 of the 3 were installed away from ceiling fans (I've read that this can cause false alarms with this type of detector, but there was no way to fully isolate the detector in our bedroom). I'll admit I haven't hit the test button every week, the siren scares the shit out of our dogs, but it shouldn't matter that the detectors are working properly. After some research on the internet I vacuumed the sensor area. I read on one that went off 3 times a month that the photoelectric sensors are very sensitive to dust, but they weren't installed in a dusty location, and even after that I had another false alarm within a week.
π Safe-T-Alert by MTI Industries 35 Series Dual LP/CO Alarm - 12V, Flush Mount, White, 6-3/8" Width x 2-7/8" Height x 1" Depth
10 Review
π₯ BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery - White
9 Review
16Ft Fire Escape Ladder 2 Story Flame Resistant Safety Rope With Anchors - Fast Deploy & Easy To Use & Store - Compact 2000 Lb Capacity Emergency Ladders
13 Review
16Ft Fire Escape Ladder: Fast Deployment, 2000Lb Capacity - Flame Resistant & Easy To Use & Store
17 Review
π AquaPod Kit 2.0: BPA-Free & Made in USA! Emergency Water Storage Container, Hurricane Survival (65 gallons) - Great for Larger Tubs!
8 Review
Be Prepared For Anything With Quakehold! 70500 Evacuation Essentials Kit
9 Review
π§οΈ Premium Quality Disposable Rain Ponchos for Adults / Kids (6 Pack) - 50% Thicker Emergency Ponchos for Ultimate Waterproof Protection
8 Review
π SOS Food Labs, Inc. 3 Day Emergency 3600 Calorie Food Bar - 72 Hour Package with 5 Year Shelf Life, Compact Size: 5"H x 2"W x 4.5"L
8 Review