Review on Travel Portable 3-Pack 10-Year Battery Operated Photoelectric Fire CO Alarm for Home, Kitchen - Smoke Detector and Carbon Monoxide Detector by Zach Clements

LOVE (WHY I BUY IT) - Combined carbon monoxide and smoke alarm, 10 year battery life, low price - Simple design, all white , NOT LIKE NOTHING to see - I bought these for hallways and bedrooms but they are NOT suitable for bedrooms as they have a VERY bright green LED that flashes every 30 seconds. Wrapping it in black electrical tape didn't help because it shines through the whole block. These blocks are easy to install, but NOT if you pay attention to how they're oriented: the mounting plate has a hole and a curved groove, so they're "self-aligning" (if mounted vertically) or at least easy to level ( when mounted on a ceiling). ), but the device is not aligned with the mounting plate, so if you mount the mounting plate straight, the device will warp. Rotating and locking devices on the mounting plate are very flimsy and the unit comes loose with the slightest touch HOW (WHY I BUY IT) - Combined carbon monoxide and smoke alarm, 10 year battery, low price - Simple design, all white, nothing what notices