Extech Indoor Compact Carbon Monoxide Monitor

Extech Indoor Compact Carbon Monoxide Monitor


The Extech Indoor Compact Carbon Monoxide Monitor displays carbon monoxide concentration, air temperature, and relative humidity.


  • Zero "Re-Calibration" Function
  • Carbon Monoxide Calibration Function In Fresh Air
  • Low Battery Indicator
Your Price
Drop ships from manufacturer

Shipping Information
Return Policy
Why Buy From Fondriest?


Programmable audible alarm, with high decibel beeper, sounds when CO concentration rises to unsafe levels. Can be wall mounted or used on a desktop close to areas of concern.

Common Areas to Monitor CO Levels:

  • Office buildings and conference rooms
  • Boats, planes, and RVs
  • Indoor work places such as warehouses that use propane and gasoline-powered fork lifts
  • Manufacturing plants of temporary heating units and gasoline-powered appliances


  • Alternately displays Carbon Monoxide (CO) concentration, Air Temperature, and Relative Humidity readings (cycles approximately every 6 seconds) 
  • Visible bright tri-colored LED indicator: Green <10ppm, Yellow = 10 to 29ppm, and Red >30ppm 
  • LCD displays alarm icon, LED light turns red, and loud audible beeper sounds when indoor CO level exceeds set point (defaults at 30ppm — adjustable); beeper can be temporarily turned off for false alarm 
  • Adjustable audible alarm sounds when reading exceeds one of the selected ranges: 25ppm, 30ppm, 35ppm, 50ppm, 100ppm or 200ppm
  • Manual Temperature and Relative Humidity Compensation (adjustable)
  • Recover to factory setting function
Notable Specifications:
  • Carbon Monoxide: 0 to 999ppm
  • Temperature: 32 to 122°F (0 to 50°C)
  • Relative Humidity: 20 to 90%RH
  • Dimensions: 4.4 x 4.3 x 2.1"
Image Part # Product Description Price Stock Order
Extech Indoor Compact Carbon Monoxide Monitor CO30 Indoor Compact Carbon Monoxide Monitor
Drop ships from manufacturer

Extech Indoor Compact Carbon Monoxide Monitor Reviews

| Write a Review

Be the first to write a review

In The News

First Environmental Monitoring System For Baltimore’s Inner Harbor

Baltimore’s Inner Harbor and the rivers that flow into it are important sources of water to Chesapeake Bay, popular recreation sites and the targets of an ambitious clean-up plan. But the city has for some time lacked an environmental monitoring system for tracking water quality in the harbor continuously. That is about to change, thanks to a collaboration between the U.S. Geological Survey (USGS) and Environmental Protection Agency (EPA). It will lead to the new installation of a suite of sensors that will provide the public and scientists with the first comprehensive, real time look at water quality in the harbor.

Read More

Parasite Behind Yellowstone River Fish Kill Found In Other Rivers

A parasite that caused a massive fish kill in Montana’s Yellowstone River has been found in at least seven other rivers in the state, according to the Bozeman Daily Chronicle . Scientists with the Montana Fish, Wildlife and Parks department made the find. So far, the parasite has been confirmed in the upper and lower Madison, East Gallatin, Bighorn, Stillwater, and Boulder Rivers. It had already been confirmed in the Jefferson and Shields Rivers. The microscopic parasite causes proliferative kidney disease, one of the most serious diseases to impact whitefish and trout. The effect of the disease on Yellowstone’s fish populations is exacerbated by other stressors like near-record low flows, consistent high temperatures and the disturbance caused by recreational activities.

Read More

ESPniagara Tracks Algal Toxins In Lake Erie, Protects Drinking Water

It may have taken 20 years and $20 million to develop, but Lake Erie researchers working to fight harmful algal blooms (HABs) now have a new tool to safeguard drinking water: ESPniagara. The advanced sampler has been called a “lab in a can” for its ability to sample microcystins, the most common algal toxin these days, in almost real time. The big gadget’s name is a mashup between “ESP,” for environmental sample processor, and the name of Admiral Oliver Hazard Perry’s ship during the War of 1812. “We wanted to name it something that was significant to Lake Erie,” said Tim Davis, molecular biologist and lead HABs researcher at the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Lab (NOAA GLERL) in Ann Arbor, Mich.

Read More