First Alert

First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display White

1291+ bought in the past month

$41.99$80.99

About this item

  • Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured
  • Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • 10-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
  • All first alert CO alarms are rigorously tested to meet UL standards
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
  • First Alert warranty extends ten years from the date of purchase with proof of the original sales receipt and the product should be free from defect in material and workmanship
$41.99
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Product details

BrandFirst Alert
Style10 Year Battery With Digital Display
Power SourceBattery Powered
ColorWhite
Product Dimensions0.9"D x 4.8"W x 2.6"H
Item Weight6.4 ounces
AlarmAudible
Operating Humidity10-95% RH
Sensor TypeElectrochemical
Global Trade Identification Number00029054014269

Technical specifications

brandFirst Alert
style10 Year Battery With Digital Display
power_sourceBattery Powered
colorWhite
product_dimensions0.9"D x 4.8"W x 2.6"H
item_weight6.4 ounces
alarmAudible
operating_humidity10-95% RH
sensor_typeElectrochemical
global_trade_identification_number00029054014269
battery_life10 years
number_of_items1
manufacturerFirst Alert / BRK Brands, Inc.
upc029054014269
part_numberCO710
item_model_numberCO710
batteries1 Lithium Metal batteries required. (included)
is_discontinued_by_manufacturerNo
sizePack of 1
patternDetector
voltage120 Volts
item_package_quantity1
batteries_includedYes
batteries_requiredYes
battery_cell_typeAlkaline
warranty_description10 Years Limited
best_sellers_rank#646 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Carbon Monoxide Detectors
date_first_availableJuly 2, 2015

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Customer reviews

4.63,987 ratings

Customers say

Customers find the carbon monoxide detector works well and is easy to install, with one mentioning it performs excellently in tents.

★★★★★

Easy and convenient.

RCJanuary 2, 2026✓ Verified purchase

I like this model because you have the option to simply put it on a shelf if you like. Read more

★★★★★

Essential Travel & Home Safety – Reliable Carbon Monoxide Protection Anywhere!

Squid & Jelly's Great AdventureSeptember 11, 2025✓ Verified purchase

We never travel without this carbon monoxide detector! Most places we stay don’t have one, so we always bring our own. On our Leopard 40 catamaran, we keep one in every cabin plus the salon and galley, and we also take one along when staying in Airbnb or Vrbo rentals. The one time we didn’t bring it was while hiking Acatenango in Guatemala. After a 7-hour climb to base camp, we were freezing and exhausted when our guide lit a fire. Smoke filled the tiny hut and we woke up with splitting headaches -classic carbon monoxide exposure. That scary moment taught us a lesson: no matter where we go, even up a mountain, this detector comes with us. The battery lasts a long time, the digital temperature display is a great bonus, and the alarm is loud enough to wake you immediately. Durable, reliable, and truly a must have for safety at home, on a boat, or while traveling. Highly recommend! Read more

Review image 1
★★★★★

Battery never needs changing!

Tech Guy from ILMay 21, 2025✓ Verified purchase

There are no 9V batteries to replace with this unit. It is rated to work for 10 years without a battery change. You will save a lot of time and money by not having to put in a new battery each year. In addition, it has a temperature display built in. This is very handy if, for example, you put this in a spare bedroom that is not heated all the time and you want to check the temperature. Read more

★★★★☆

Subpar Battery Life, But Reliable!

TahaFebruary 18, 2026✓ Verified purchase

A very down to earth product that does what it should and is incredibly functional. One thing that caught me off guard was its battery life, though it did last me over two months which is great, it would be nicer if it had lasted longer, but there's always the option to plug it in! Great value for money overall and the plug-in capability is simple. Read more

★★★★★

very simple to use

RobJanuary 4, 2026✓ Verified purchase

Very simple: unpackage, press the button, place on table or desk. Read more

★★★★★

Accurate thermometer - just takes a while.

ImWithStupidOctober 19, 2025✓ Verified purchase

A lot of people were complaining about the thermometer feature on this thing being inaccurate. It was certainly higher than it should’ve been when I first unboxed it, but sitting in my room for a day it’s now showing the exact same temperature as my thermostat. Not an instant read thermometer by any means, I put it above a stove and it took at least 30-40 seconds to climb up just one degree. But from my experience it’s certainly accurate enough. Oh yeah, and it’s probably a great CO detector too. Plenty loud for sure. Read more

Review image 1
★★★★★

First Alert quality at a reasonable price for a CO Alarm

Rob PMarch 21, 2025✓ Verified purchase

For the last 5 years, I have had a First Alert CO monitor near my gas fireplace. Nice to have the temperature showing in large display as well. When the alarm sounded to indicate my monitor was at the end of its life, I looked for a replacement. The upgraded/repackaged First Alert CO monitor on Amazon was the best choice for me; I'm still able to see the temperature in large numbers, with confidence that this monitor will warn me if we have a CO issue in my home. Read more

★★★★★

Worth Every Penny

Michael E BanksMay 2, 2025✓ Verified purchase

Simple to install, works extremely well and the size fits almost anywhere. If something saves your life, is it a good value for the money, you bet it is! Peace of mind enough to move into a place without Carbon Monoxide threat. It's a bonus that it's also a room thermometer. Read more

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