Environmental Meters | McMaster-Carr

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Millimeters of Mercury

Measures

Differential Pressure

Relative Humidity Accuracy

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Calibration Certificate

Minimum Temperature

RoHS

Compliant with Exemptions

REACH

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Depth

Meter Style

Mounting Location

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Graduations

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Minimum Dew Point

Color

Maximum Temperature

Mounting Hole Diameter

Battery Size

Electrical Connection

Maximum Pressure

Material

Relative Humidity

Certification

128 Products

Measuring and Inspecting

Barometers

Measure atmospheric pressure changes

2 products

Light Meters

Measure light quality and intensity

20 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

13 products

Humidity Meters

Measure relative humidity without complex calculations

4 products

Airflow Meters

Measure airflow in duct, air filters, exhaust hoods, and other air applications

25 products

Weather Stations

Measure multiple weather conditions at the same time

9 products

Multimeters

Take current, voltage, resistance, and other electrical measurements

39 products

Thickness Gauges

Move the thumb lever to quickly check the thickness of flat stock, pipe, or tubing

6 products

Sound Level Meters

Measure noise levels to determine if an area requires hearing protection

9 products

Safety Equipment

Earplug Fit Testers

Confirm your earplugs deliver the right level of hearing protection

1 product

Sound Level Monitors

Continuously measure ambient sound levels to confirm they fall within your programmed thresholds

2 products