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Smoke alarms are powered by battery or by your home's electrical system. If the smoke alarm is powered by battery, it runs on either a disposable 9-volt battery or a non-replaceable 10-year sealed lithium battery. Alarms that receive their power from your home's electrical system (hardwired alarms) usually have a back-up battery that will need to be replaced once or twice a year.
There are many special features that can help protect you and your home, or make your safety products easier to maintain and operate. Many of these features are not well known by their name, so to learn more about specific features of a model, select it and view its detail page.
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The Nighthawk KN-COP-DP-LS AC Powered, Plug-In carbon monoxide alarm with battery backup and digital display is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Digital display feature adds an advanced level of protection showing CO levels in PPM allowing you to see if levels change. Written information and instruction make this unit’s operation easy for anyone to understand. The Nighthawk AC/DC Digital alarm has a small, sleek design that is suitable for all living areas and has a 10-year limited warranty.
The Nighthawk KN-COP-DP-LS provides you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. The battery backup feature provides continuous monitoring of CO levels, even during power outages when AC-only units are not providing protection. Digital Display feature allows for easy viewing of carbon monoxide levels from 30-999PPM (parts per million). The Nighthawk CO alarm has a 10-year product life, providing 40% longer protection than other CO alarms.
*Based on accuracy claims of major manufacturers
Part Number (Ordering Number): 900-0234
The carbon monoxide alarm shall be Kidde Unit Number KNCOP- DP-LS (part number 900-0234) or approved equal. It shall be powered by a 120VAC, 60 Hz source along with a 9V battery back up. The temperature operating range shall be between 40°F and 100°F (4°C and 38°C) and the humidity operating range shall be 10% - 95% relative humidity. The CO sensor shall be of a fuel cell design and shall meet the sensitivity requirements of Underwriters Laboratories UL2034 Single and Multiple Station Carbon Monoxide Alarms. The unit shall provide accuracy of ± 30% when reading CO concentration levels. The alarm shall include an integral plug that can be installed in any outlet following the UL/NFPA/Manufacturer’s recommended guidelines. The AC blades remain vertical independent of whether the electrical socket is mounted vertically or horizontally. The unit shall incorporate a digital display that meets the sensitivity requirements of UL 2034. The display will identify the levels of CO in parts per million (ppm) once that level reaches 30ppm (i.e.: “abnormal” levels). The display will have a red dot in the lower right corner that will blink to indicate the normal operation. The alarm shall include a test/reset button. If pressed and released during normal operation, it shall electronically simulate the presence of CO and cause the unit to go into alarm. This sequence tests the unit’s electronics to ensure proper operation. If pressed during alarm mode, the unit will be silenced and will begin monitoring CO levels again. The alarm shall include Tamper Resist Feature. If activated, unit shall go into constant alarm mode until the unit is replaced into the wall socket or the battery is removed. In accordance with UL 2034, the CO sensor will not alarm to levels of CO below 30 ppm and will alarm in the following time range when exposed to the corresponding levels of CO. 70 ppm CO concentration 60 – 240 minutes 150 ppm CO concentration 10 – 50 minutes 400 ppm CO concentration 4 – 15 minutes The alarm shall include a piezoelectric horn that is rated at 85 decibels at 10 feet. When the unit detects carbon monoxide, the alarm pattern will be four (4) short beeps – followed by five (5) seconds of silence – followed by four (4) short beeps. A number reading will appear on the digital display identifying the measured CO concentration (in ppm).