Best Efficient Carbon Monoxide Detector

Good Neighbors: The Complete Series 1-3 (DVD)

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.

CO detector with alert modes & LED lights that pulse for power, CO detection, & low battery.
Sophisticated electronic components to protect you & your family from the dangers of carbon monoxide, 85 decibel alarm alerts of fire.
Protects during a power failure - operates on 2-AA batteries, included with pack.
Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases.

This smoke and carbon monoxide alarm has long-lasting sensors and components that deliver a long life of up to 10 years.
also includes a replaceable 3-year lithium battery.
Informative LCD shows real-time CO concentrations and battery power to monitor for CO leaks and battery level.
to save power, it will activate only when the device is tested or the ppm has reached the alarm level for a certain period.
Featuring a light and thin design, this combination smoke and carbon monoxide detector has a 215–430 sq. ft (20–40 m²) detection range, fully protecting you and your family from dangerous smoke and carbon monoxide.
This smoke and carbon monoxide detector is built with both a cutting-edge photoelectric smoke sensor and electrochemical CO sensor to deliver high consistency and reliability for double detection and protection.
The loud alarm tone is over 85 dB at 10 ft (3 m) to alert anyone in a deep sleep.
with included screws and anchor plugs, this battery-operated unit can be installed effortlessly without an electrician.

Carbon monoxide gas detector is a portable detector for detecting carbon monoxide (CO) gas. It can continuously monitor the CO gas concentration in....
With a wide measuring range, the ambient temperature can be measured in 2 temperature units (°C and °F)..
Clear LCD screen: Large LCD digital and character display for easy reading..
Small size, light weight, easy to carry and operate..
High precision portable CO gas tester with compact size and light weight is easy to carry and operate. It is widely used in petroleum, chemical, coal,....

Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there's smoke or CO in your home.
Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is.
Get phone alerts so you know something's wrong even when you're away from home[1].
CO detector looks out for carbon monoxide and tells you where it's located.
With App Silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke.

Digital display updates every 15 seconds to show the level of carbon monoxide the CO monitor is sensing.
Still works during a power failure - carbon monoxide alarm operates on a long-life, sealed lithium battery.
Easy installation and no battery fuss - CO alarm will automatically activate when attached to the mounting bracket.
Carbon monoxide detector offers alert modes and 3 LEDs that signal to indicate power, CO detection, or low battery.

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help....

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help....

Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there's smoke or CO in your home.
Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is.
Get phone alerts so you know something's wrong even when you're away from home[1].
CO detector looks out for carbon monoxide and tells you where it's located.
With App Silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke.

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.