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Silhouette 120V AC Wire-in Low Profile
Carbon Monoxide Alarm with  
Lithium-Ion Rechargeable Battery Backup

Part Number 21007426
Model KN-COPF-i

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-COPF-i or 

approved equal. It shall be powered by 120VAC, 60Hz source and 
include a sealed in, rechargeable, lithium-ion rechargeable 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 up to 85% relative humidity (RH)

The unit’s CO sensor shall be electrochemical and shall meet 

the sensitivity requirements of Underwriters Laboratories UL2034 
Single and Multiple Station Carbon Monoxide Alarms. The unit 
shall provide accuracy of +/-20% + 15 parts per million (ppm) 
when reading CO concentration levels .

The alarm can be installed on the surface of any wall following 

the UL/NFPA/Manufacturer’s recommended placement guidelines. 
The alarm can be installed in most standard 2-gang, metal or 
plastic electrical boxes.

A maximum of 24 Kidde devices can be interconnected in a 

multiple station arrangement. The interconnect system must not 
exceed the NFPA (National Fire Protection Association) limit of 
18 initiating devices, of which 12 can be smoke alarms. With 18 
initiating devices (smoke, heat, CO, etc), interconnected, it is still 
possible to interconnect 6 strobe lights and or relay modules.

The unit shall incorporate a digital display that meets the sensi-

tivity 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 alarm shall include a test button that will electronically 

simulate the presence of CO and cause the unit to alarm. This 
sequence tests the unit’s electronics and horn to ensure proper 
operation. In accordance with UL 2034 with requirements, 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 utilize 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 incorporate an “Intelligent Interconnect” feature that allows 
it to respond to a smoke incident when interconnected with 
smoke alarms. During a smoke incident, the horn will sound in the 
required, repetitive manner for a smoke alarm – three (3) beeps, a 
pause, three (3) beeps, a pause. The digital display will also scroll 
the word “Fire” across the display. The unit shall incorporate 3 

Technical Specifications

Part Number: 

900-0232

Model: 

KN-COPF-i

Power Source: 

120VAC, 60HZ, 60mA max

 

Sealed-in, rechargeable,  

 

lithium-ion battery back-up

Sensor: 

Electrochemical

Audio Alarm: 

85dB at 10ft

Temperature Range: 

40˚F (4.4˚C) to 100˚F (37.8˚C)

Humidity Range: 

up to 85% relative humidity (RH)

Size: 

 4.83” x 4.76” x  1.49 “ 

Weight: 

.62 lbs with battery

Wiring:  

Quick connect plug with 8” pigtails

Interconnects: 

Yes

Warranty: 

7 year limited

Ordering Information

UPC: 

0-47871-07426-6

4.83

4.76

DEPTH

0.71

FROM WALL

0.78

MAX DEPTH

INTO ELECTRICAL BOX

**Not for sale by individual unit - information for dimensional purposes only.

P/N: KL-SIL-CO sheet  

rev. 01-2009

Distributed by:

LED’s. A green LED will be steady on when AC power is present.  
A red LED will flash in unison with the sounder pattern for both a smoke  
or CO incident, or an error condition. The amber LED will illuminate if  
that unit is the originating alarm in a CO incident.

The unit shall include a peak level memory feature that will store the 

peak CO level sensed since the unit was last reset. The peak CO level  
stored in the unit’s memory shall be displayed (in ppm) on the digital  
display by pressing the appropriate button on the unit. The memory  
shall also be capable of being reset.

The unit shall be Listed to UL 2034. It shall also include a 7-year  

manufacturer’s limited warranty.

Part 

 

 

Dimensions 

 

Case/ 

Skid

Number 

I 2 of 5 

Pack Quantity  

(w x d x h inches) 

Weight 

Skid 

Weight

900-0232** 

N/A 

Individual (Box) 

5 x 1 7/8 x 5 

1 lb. 

N/A 

N/A

21007426 

100-47871-07426-3 

Cutcase (6 units) 

5.25 X 12.5 X 5.25 

7lbs 

196 

1,372 lbs.

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