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One year warranty

Wohler CM 220 Carbon Monoxide Measurement

SKU: CART-03289
Model: 4486
Product Condition: New
$234.00
$498.00

Wohler CM 220 Carbon Monoxide Meter delivers handheld ambient CO measurement from 0 to 999 ppm with 1 ppm resolution for gas heating checks, combustion safety screening, and indoor air quality evaluation.

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Estimated delivery: 7 days
One year warranty
Free return within 30 days of purchase.
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Wohler Combustion Gas Analyzers and Accessories Indoor Air Quality & Gas Testing HVAC Equipment, Tools and Accessories
Product Description

Carbon Monoxide Measurement for Heating and Indoor Air Checks

The Wohler CM 220 is a handheld carbon monoxide meter designed for ambient CO measurement. It provides ppm-based readings to support carbon monoxide screening in heating-related environments and general indoor air checks. Its compact format suits service, inspection, and safety-focused measurement workflows.

Ambient CO Detection with Direct ppm Readout

- Measures carbon monoxide concentration in ambient air across a 0 to 999 ppm range
- Displays readings in 1 ppm increments for direct concentration tracking
- Responds to detected CO levels with a response time of up to 60 seconds
- Supports portable measurement through battery-powered operation with 3 AAA batteries

Carbon Monoxide Measurement Functions and Operating Range

- Measurement range: 0 to 999 ppm
- Resolution: 1 ppm
- Accuracy: ±20% at 0 to 99 ppm and ±15% at 100 to 500 ppm
- Humidity range: 5 to 99% r.H. non-condensing
- Operating temperature: 14 to 140 °F; storage temperature: -40 to 158 °F

Heating Service and Indoor Air Monitoring Applications

- Carbon monoxide checks around gas-fired and heating-system environments
- Ambient air screening during service and inspection workflows
- Indoor air quality evaluation in enclosed work and utility areas

Specifications
Specifications
MPN 4486
Product Condition New
Shipping Length (in.) 9
Shipping Width (In.) 4
Shipping Height (In.) 3
Item Returns This item can be returned
Specification Value
Brand Wohler
Model CM 220
MPN 4486
Instrument Type Carbon Monoxide Meter
Measurement Range 0 to 999 ppm
Accuracy ±20% at 0 to 99 ppm; ±15% at 100 to 500 ppm
Resolution 1 ppm
Supply 3 AAA batteries
Response Time Up to 60 sec.
Humidity Range 5 to 99% r.H. (non-condensing)
Operating Temperature 14 to 140 °F
Storage Temperature -40 to 158 °F
What's in the box?
  • Wohler CM 220 Carbon Monoxide Meter
  • 3 x AAA batteries
  • Carrying pouch
  • Hand strap
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