Installation Guide
Plug-In Carbon Monoxide Alarm —AC Powered with 
Sealed Lithium Battery Backup and Digital Display
Part Number: 900-0280
Model KN-COP-DP-10YL
Architectural and Engineering 
Specifications
The carbon monoxide alarm shall be Kidde model number KN-COP-
DP-10YL (Part Number 900-0280) or approved equal. It shall be 
powered by a 120VAC, 60 Hz source along with a 3V sealed lithium 
battery backup. The temperature rating shall be between 40°F and 
100°F (4°C and 38°C) and the humidity operating range shall be 
10% - 95% relative humidity, non-condensing. 
The CO sensor shall be of a fuel cell design and shall meet the sen-
sitivity requirements of Underwriters Laboratories UL2034 Single and 
Multiple Station Carbon Monoxide Alarms. The unit shall provide an 
accuracy of +/- 30% when reading concentration levels. 
The alarm shall include an integral plug that can be installed in any 
outlet following the UL/NFPA/Manufacturer’s recommended guide-
lines. 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 UL2034. The display will identify the levels of CO in parts per mil-
lion (ppm) once that level reaches 30ppm. The display will automati-
cally dim in low light conditions, and will turn off when AC power is 
removed unless more than 100ppm is detected or in alarm mode.
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. 
In accordance with UL2034, 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 deci-
bels 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 concentra-
tion (in ppm). 
See user guide for additional important information.
Ordering Information
Technical  
Specifications
Part Number: 900-0280
Model: KN-COP-DP-10YL
Power Source:  120VAC, 60 Hz, 90mA max
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), non-condensing 
Size:  3.0” x 5.6” x 1.5”
Weight:  .62 lb.
Interconnects: No
Warranty:  10 year limited
1016 Corporate Park Drive
Mebane NC 27302
1-800-880-6788
www.Kidde.com
Distributed by:
P/N: KL-900-0280 sheet  rev. 10-2015
Ordering 
No: UPC I 2 of 5
Pack 
Cong.
Pack 
Qty
Dimensions 
(w” x d” x h”)
Weight 
(lbs.)
Cartons/ 
Pallet
21026350 0-47871-26350-9 100-47871-26350-6 Clam 3 8 x 9.5 x 11.5 2.64 lb 75
!
 WARNING: This product is intended for use in ordinary indoor 
locations of family living units. It is not designed to measure compli-
ance with Occupational Safety and Health Administration (OSHA) 
commercial or industrial standards.
This device is designed to protect individuals from acute effects of 
Carbon Monoxide exposure. It will not fully safeguard individu-
als with specic medical conditions. If in doubt, consult a medical 
practitioner. Individuals with medical problems may consider using 
warning devices which provide audible and visual signals for carbon 
monoxide concentrations under 30 ppm.
Industry experts recommend a CO alarm be installed on each level 
of the home--ideally on any level with fuel burning appliances and 
outside of sleeping areas.– see User Guide for further information.


