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Nighthawk Carbon Monoxide Alarm
AC Powered, Plug-in with Battery Backup
Part Number 900-0235
Model KN-COB-DP-LS
1016 Corporate Park Drive
Mebane NC 27302
1-800-880-6788
www.kidde.com
Architectural and Engineering
Specifications
The carbon monoxide alarm shall be Kidde Model KN-COB-DP-
LS (part number 900-0235) or approved equal. It shall be powered
by a 120VAC, 60 Hz source, along with a 9V battery backup.
The temperature operating range shall be between 40°F and
100°F (4°C and 38°C) and the humidity operating range shall be
5%-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 alarm shall include an integral plug that can be installed
in any electrical outlet following the UL/NFPA/Manufacturer’s
recommended guidelines. The unit shall have a green LED that will
illuminate continuously and indicate that the CO alarm is receiving
power and the alarm circuit is functioning.
The alarm shall include a test/reset button. If pressed and re-
leased 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 moni-
toring 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.
The unit shall be listed to UL 2034. It shall also include a
7-year manufacturer’s limited warranty.
Technical Specications
Part Number: 900-0235
Model: KN-COB-DP-LS
Power Source: 120VAC, 60HZ, 60mA max
9V battery back-up
Sensor: Electrochemical
Audio Alarm: 85dB at 10ft
Temperature Range: 40˚F (4˚C) to 100˚F (38˚C)
Humidity Range: 10%-95% relative humidity (RH)
Size: 3.0” x 5.6” x 1.5”
Weight: .62 lbs with battery
Interconnects: No
Warranty: 7 year limited
Ordering Information
21007308 UPC: 0-47871-07308-5, 21007336 UPC: 0-47871-07336-8, 21007329 UPC: 0-47871-07329-0
*Based on accuracy claims of major manufacturers
**Not for sale by individual unit
Distributed by:
KL-900-0235 sheet rev. 01-2009
Part Dimensions Case/ Skid
Number I 2 of 5 Pack Quantity (w x d x h inches) Weight Skid Weight
900-0235** N/A Individual (Clam) 7.5 x 2 x 11 1.54 lbs. N/A N/A
900-0235** N/A Individual (Box) 3.44 x 2.38 x 6 1.54 lbs. N/A N/A
21007308 100-47871-07308-2 Cutcase (4 units) Clam 7.94 x 11.88 x 11.50 6.16 lbs. 60 369
21007336 100-47871-07336-5 Cutcase (8 units) Clam 7.94 x 21.63 x 11.5 12.32 lbs. 36 443
21007329 100-47871-07329-7 Cutcase (6 units) Gift Box 7.5 x 8 x 6.5 9.24 lbs. 36 324