Operating and Alarm Characteristics

5. Model KN-COB-B-LS Operating Characteristics

Whenever the alarm is operating, the green Power LED flashes every 30 seconds to indicate the unit is monitoring for CO. If the alarm senses dangerous levels of CO, the red Alarm LED will flash and the alarm will emit an audible alarm pattern.

Function	LED Display	Alarm Sound	Unit Status	Recommendation

Normal	Green LED	None	Normal DC	None
Operation	flashes every 30		operation (sensing
	seconds		no CO) and with
			good batteries

Carbon	Red LED flashes	4 quick beeps,	Alarm condition.	Refer to “What to do
monoxide	with beeps.	5 seconds	Dangerous	When the Alarm
alarm		silence,	concentrations of	Sounds” (inside front
		repeating	CO detected	cover)

Low	Red LED flashes	One quick	Batteries need to be	Replace all three AA
battery	every 30 seconds	beep every	replaced	batteries
		30 seconds

Error /	Red LED flashes	One quick	Unit is in error	Replace battery.
service	every 30 seconds	beep every	condition	If condition continues,
alarm		30 seconds		unit has malfunc-
				tioned. Replace
Error	Red LED	Constant	Very low battery or	immediately. Unit will
	constantly on	alarm	unit malfunction	not respond to CO

Normal	Red LED flashes	4 quick beeps,	Normal operation	CO not detected.
Test/Reset	with beeps.	5 seconds	when Test/Reset	Alarm for test
function	Green and amber	silence,	button is pressed	purposes only
	LED’s on	repeated once

End of	Red LED flashes	One quick	End of unit life	Replace unit immedi-
unit life	every 30 seconds	beep every 30		ately. Unit will not
indicator		seconds		respond to to CO

6.Model KN-COPP-B-LS (with digital display) Operating Characteristics

When the unit is first powered up, the green Operate LED flashes once every 30 seconds and the digital display will show three “eights” – indi- cating the alarm is in the start-up mode. The three “eights” will remain for approximately 30 seconds. Then, the alarm will display “0” and begin monitoring the air for CO and will continue to do so as long as it receives power.

This alarm will display a “0” if CO concentrations between 0 and 30 PPM have been detected within the last 15 seconds.

6.Model KN-COPP-B-LS (with digital display) Operating Characteristics

The following table illustrates the possible digital displays, describes the audible alarm patterns, and the recommended actions to take.

Operating and Alarm Characteristics

LCD Display Shows		Alarm Sound	Unit Status	Recommendation

	A steady display of	4 quick beeps,	Alarm condition.	Refer to “What to do
	A steady display of	4 quick beeps,	Alarm condition.	Refer to “What to do
	CO concentration	5 secs. silence,	Dangerous	When the Alarm
	from 30-999. Red	repeating for 4	concentrations of	Sounds” (inside front
LED flashes with beep		min.– then 4	CO detected	cover)
		quick beeps
		every minute

	Brief “888” for	None	Self test when first	None – CO has not
	Brief “888” for	None	Self test when first	None – CO has not
	approximately 30		powered up	been detected.
	seconds			Numbers shown for
				test purpose only

	A random number	4 quick beeps,	Test/Reset button is	None – CO has not
	A random number	4 quick beeps,	Test/Reset button is	None – CO has not
	is displayed –	5 seconds	pressed	been detected.
	approximately 200	silence,		Numbers shown for
		repeated once		test purpose only

	Steady “0”	None	Normal DC	None
	Steady “0”	None	Normal DC	None
	displayed, dot flash-		operation with
	ing every 5 seconds,		good batteries
Green LED flashes every 30 secs.			(sensing no CO)

	“Lb” flashes alter-	One quick beep	Batteries need to	Replace all three AA
	“Lb” flashes alter-	One quick beep	Batteries need to	Replace all three AA
	nately with any	every 30 seconds	be replaced	batteries immediately
	number, Red LED
flashes every 30 seconds.

	“Err” displayed	One quick beep	Unit is Error condi-	Replace batteries.
	“Err” displayed	One quick beep	Unit is Error condi-	Replace batteries.
		every 30 seconds	tion	If “Err” (or blank
				display) continues,
				unit has malfunc-
				tioned. Replace
				immediately. Unit will
	Display is blank	Constant alarm	Unit malfunction	immediately. Unit will
	Display is blank	Constant alarm	Unit malfunction	not respond CO
				not respond CO


	Number from 11-	None	Peak Level Memory	Refer to following
	Number from 11-	None	Peak Level Memory	Refer to following
	999 displayed.		activated. Highest	section for informa-
			concentration of	tion regarding Peak
			CO detected is dis-	Level Memory
			played

	“End” displayed.	One quick beep	End of unit life	Replace unit immedi-
	“End” displayed.	One quick beep	End of unit life	Replace unit immedi-
	Red LED flashes	every 30 seconds		ately. Unit will not
	every 30 seconds			respond to CO.

The problems listed above are under normal operating conditions. Other “Err” conditions could exist. If you should have any questions regarding display conditions, call our Consumer Hotline.

KN-COPP-B-LS (900-0230), KN-COB-B-LS (900-0233) specifications

The Kidde KN-COB-B-LS (model 900-0233) and KN-COPP-B-LS (model 900-0230) are state-of-the-art devices designed for enhanced safety in homes and workplaces through advanced carbon monoxide (CO) and smoke detection. These two models exemplify Kidde’s commitment to providing reliable protection against potentially life-threatening situations.

The Kidde KN-COB-B-LS features an electrochemical carbon monoxide sensor, which provides accurate detection of even the smallest concentrations of CO. This model typically has a digital display that continuously shows CO levels in parts per million, allowing users to monitor levels in real-time. It is equipped with a voice alarm that offers clear and concise warnings when CO is detected. Additionally, the KN-COB-B-LS has a peak level memory feature that records the highest CO level detected, which is useful for understanding exposure over time.

On the other hand, the KN-COPP-B-LS is a combined smoke and carbon monoxide alarm, integrating dual-sensor technology for comprehensive monitoring. This unit utilizes both photoelectric and ionization sensing technologies. The photoelectric sensor is particularly effective at detecting smoldering fires, while the ionization sensor is better suited for fast flaming fires. This combination increases the effectiveness of fire detection, giving users an earlier warning in emergency situations. Similar to the KN-COB-B-LS, the KN-COPP-B-LS also features a digital display for CO levels and a voice alert system for immediate notifications.

Both devices are easy to install and come with a battery backup to ensure uninterrupted operation during power outages. They feature a test/reset button that allows users to verify functionality and a low battery warning system that alerts users when it's time to replace the batteries. The compact design and modern aesthetics of both alarms ensure they blend seamlessly into any environment.

Furthermore, these models comply with the latest safety standards, providing reassurance to homeowners and businesses alike. With an impressive lifespan of up to 10 years, these Kidde alarms are not only durable but also provide long-term protection against the dangers of smoke and carbon monoxide. Investing in the Kidde KN-COB-B-LS and KN-COPP-B-LS is a proactive step toward ensuring safety and peace of mind for you and your loved ones.