Unfortunately, it underperformed its competition in our quickness of response test, with a bottom-three result in the 250ppm run and last place in the 400ppm run. Nest Protect Smoke and Carbon Monoxide Alarm : Very compelling option for those who don't mind spending a little more in exchange for a wide range of smart features including location specific voice alarm, color-coded emergency notifications and smartphone app control for silencing and routine testing. Other carbon monoxide detectors we've tested Shorter bars indicate faster alarm times. Note: Time needed to sound alarm after exposure to different CO thresholds, mm:ss. As you may understand, we wanted to limit our exposure while making sure our results were repeatable.įirst Alert CO400 10:46 7:03 First Alert Onelink 1042136 11:42 8:10 First Alert CO615 12:12 8:07 Kidde KN-COPP-B-LPM 14:10 8:40 X-Sense SC07 20:05 7:50 Nest Protect 06C 17:50 12:44 Kidde KN-COB-DP2 20:22 10:53 We want to assess how long the carbon monoxide detectors take to react to those conditions. Once the concentration inside our chamber reaches at least 250 ppm or 400 ppm, we stop feeding the gas and start a timer. We start by feeding our gas mixture to the chamber, closely monitoring the carbon monoxide concentration on the Testo. This might all sound excessive, but it's always good laboratory practice to put safety first, especially when you're dealing with such a stealthy and prolific killer. On top of all that, our respirator suits and amply ventilated location ensure that we get a constant stream of fresh air at all times. One near the valve, to ensure there are no leaks, and another that must be worn by the person carrying out the experiment to make sure there is no CO buildup in the test station area. Two additional portable CO detectors are used. A single button silences the alarm and tests the CO detector.We installed a gas flow regulator on our tank to avoid pressure spikes, followed by a gas line to feed our gas mixture into the chamber. An easy access battery door allows you to quickly install or remove batteries without having to dismount the detector. Simply insert the two included AA batteries, and the CO detector will start to monitor your space for carbon monoxide. The First Alert CO410 Battery-Operated Carbon Monoxide Alarm with Digital Display is easy to set up. A low battery signal mute quiets the low battery signal for up to eight hours. A low-battery alarm alerts you when battery power is running low, and an end-of-life warning lets you know when the detector should be replaced. When carbon monoxide levels rise, the battery-operated carbon monoxide detector sounds an 85-decibel alarm. The easy-to-read display illuminates when a button is pressed, or an alarm is triggered. Thanks to the battery-operated CO detector's backlit LED display, it’s easy to see the current CO concentrations in parts per million, as well as recent peak levels, and the threshold for dangerous levels. Placing carbon monoxide detectors on every floor of the home and in each sleeping room, is an important way to protect your family from danger and ensure their safety. Carbon monoxide can’t be seen, smelled, or tasted in the air, and it is the leading cause of accidental poisoning deaths in America. When CO is detected, the carbon monoxide detector sounds an alarm to warn you of the threat. The First Alert CO410 Battery-Operated Carbon Monoxide Alarm uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels.
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