Smoke and carbon monoxide detector with 10 year lithium battery

The Kidde P3010CU is a 10-year, sealed battery, smoke and carbon monoxide alarm with a voice warning system that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, which is used to detect CO. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarm’s overall performance and significantly reduces the potential for a nuisance alarm.

The voice warning system announces “Fire”, or “Warning, Carbon Monoxide” to help eliminate any confusion and clearly warn you and your family of a smoke or carbon monoxide danger. The sealed in lithium battery will power the unit for the entirety of its 10 year life, eliminating the need for battery replacement and worry about unauthorized battery removal. The alarm provides continuous protection from smoke and carbon monoxide, even during power outages. The alarm will automatically activate when it is attached to the mounting bracket; there are no pull-tabs, no switches, everything is automatic. At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement. The customer can use a simple tool such as a screwdriver to deactivate the unit, stopping the chirp and making it safe for disposal.

  • Combination Smoke and Carbon Monoxide Alarm – Smoke and CO sensing technologies work together to detect real fires faster and reduce nuisance alarms.

  • Voice Alarm – Announces the hazard type detected thereby helping to speed up the correct reaction. Alarm announces “Fire!” when a smoke or fire hazard is detected and announces “Warning Carbon Monoxide” when a CO hazard is detected.

  • Sealed-In Lithium Battery – Sealed-in lithium power supply; no battery replacement required over the 10 year life of the alarm. Eliminates worry about battery removal or unauthorized deactivation of alarm.

  • Photoelectric Sensor – Smoke alarm contains advanced photoelectric sensor that may detect visible particles (associated with smoldering fires) sooner than ionization alarms.

  • Self Activation – Alarm automatically activates when attached to the mounting bracket.

  • Test/Hush Button – Tests alarm circuitry and activates Hush features.

  • Smart HushTM – Temporarily silences nuisance alarms for approximately 9 minutes and will not allow hush mode unless the unit is in alarm mode.

  • Red LED will blink in conjunction with the alarm sound.

  • End of Life Warning – Alarm chirps twice every 30 seconds to indicate the unit is in need of replacement.

  • End of Life Hush® – End of life indication can be silenced three days at a time up to 30 days to allow for alarm replacement at a more convenient time.

  • UL217 and UL2034 Listed

  • 10 Year Limited Warranty

Technical Specifications

Model: P3010CU
Power Source: Sealed Lithium Battery
Sensor: Smoke: Photoelectric CO: Electrochemical
Audio Alarm: 85dB at 10ft
Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C)
Humidity Range: 10%-85% non-condensing relative humidity (RH)
Size: 5.22” in diameter x 1.6” depth
Weight: 1 lb.
Interconnects: No
Warranty: 10 year limited

Architectural and Engineering Specifications

The combination smoke and carbon monoxide alarm shall be Kidde model number P3010CU or approved equal. It shall be powered by a non-replaceable lithium battery with a 10-year life. The lithium battery shall be sealed in the unit to prevent removal and/or tampering. The unit shall incorporate a photoelectric smoke sensor and an electrochemical carbon monoxide sensor. The CO sensor shall be of a fuel cell design and provide accuracy of +/- 20% + 15 PPM. The temperature operating range shall be between 40ºF and 100ºF (4ºC and 38ºC) and the humidity operating range shall be 10%-95% non-condensing relative humidity. 


The alarm can be installed on the surface of any wall or ceiling following the UL/Manufacturer’s approved placement guidelines. The alarm shall incorporate an automatic activation feature that will activate the unit as soon as it is attached to the mounting bracket, no other steps are involved.
The alarm shall include a test button that will electronically simulate the presence of smoke and CO and cause the unit to go into both modes of alarm. This sequence tests the unit’s electronics to ensure proper operation. 


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. For a CO incident, the horn will sound in the repetitive manner – 4 quick beeps, voice message “Warning! Carbon Monoxide”, 4 quick beeps. In a smoke incident, the horn sounds 3 long beeps, voice message “Fire!”, 3 long beeps, repeating. The red LED will flash in conjunction with the alarm sound. See User Guide for details regarding voice warning for low battery condition. 


The unit shall indicate a low battery condition with a brief alarm chirp every 60 seconds and LED flash once every 30 seconds. In standby condition, the LED will flash every 60 seconds for the first 10 minutes following power on or test, and once every 10 minutes thereafter. It will also flash every 10 seconds while in Hush mode. 


The smoke alarm shall include an End of Life Alert, where ten years after initial power-up the unit shall chirp two times every 30 seconds to indicate the alarm needs to be replaced. The
End of Life indication can be silenced for 3 days at a time for a maximum of 30 days. The unit shall have a deactivation switch to disable it and make it safe for disposal. 


The unit shall at a minimum meet the requirements of UL217, UL 2034, NFPA 72. The State of California Fire Marshall, NFPA 101 (One and two family dwellings), Federal Housing Authority (FHA), Housing and Urban Development (HUD). It shall also include a 10-year manufacturer’s limited warranty.

Smoke and carbon monoxide detector with 10 year lithium battery

Should I buy a smoke detector with a 10

At the end of ten years, the smoke alarms will give an end-of-life warning letting you know to replace the alarm. Benefits of owning and installing a 10-year sealed battery alarm in your home include: No need to remember to change batteries every 6 months. Eliminate late night, low-battery chirps.

Are smoke detectors with lithium batteries safe?

Lithium 9Vs aren't recommended for smoke detectors unless you follow a strict battery replacement schedule. Those batteries maintain a high voltage until the end of their usable life, so they provide a much shorter "low battery" warning to alert you that it's time to swap in a fresh one.

How long does a 10

For 10-year lithium-powered smoke alarms, you won't need to replace the battery. Instead, replace the entire alarm after 10 years from the manufacture date on the back of the alarm.

How long do lithium batteries last in smoke detectors?

Yes, they do. If your smoke alarm uses a lithium battery, it is inbuilt into the alarm and cannot be replaced. The entire unit needs to be replaced every 10 years. The batteries in these alarms are designed to last the life of the smoke alarm, in which case the battery will have served its purpose after 10 years.