Humidity Testers | McMaster-Carr

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Display Type

Measurement Unit

Millimeters of Mercury

Meter Type

Relative Humidity

Certificate Type

Calibration Certificate Traceable to NIST

Measures

Air Quality Index

Ambient Temperature

Barometric Pressure

Black Globe Temperature

Carbon Dioxide Level

Dew Point

Equivalent Carbon Dioxide

Total Volatile Organic Compound Concentration

Probe Type

Relative Humidity Accuracy

Maximum Temperature

Mounting Location

For Use With

Battery Size

Power Source

Housing Material

Temperature Resolution

Mount Type

Temperature Features

Audible High/Low Alarm

Visual High/Low Alarm

Material

Maximum Indoor Temperature

Minimum Dew Point

Export Control Classification Number (ECCN)

3A992

EAR99

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Not Compliant

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

Minimum Temperature

100 Products

Temperature and Humidity Meters

Set on a tabletop to measure indoor temperature and humidity

2 products

Remote-Reading Temperature and Humidity Meters

Monitor temperature and humidity both indoors and outdoors with the wireless sensor

1 product

Remote-Reading Handheld Temperature and Humidity Meters

Reach into hard-to-access areas to check humidity, temperature, and dew point

1 product

Pocket Temperature and Humidity Meters with Calibration Certificate

No bigger than a pen for temperature and humidity readings on the go

1 product

Handheld Temperature and Humidity Meters

Measure a wider temperature and humidity range than pocket meters

2 products

Remote-Reading High-Accuracy Temperature and Humidity Meters with Calibration Certificate

More accurate than other remote meters for precise indoor readings

1 product

Remote-Reading Wall-Mount Temperature and Humidity Meters

Snake the probe outside to measure outdoor temperature in addition to indoor conditions

1 product

Through-Wall-Mount Temperature and Humidity Meters

Monitor humidity, temperature, and dew point inside sealed containers

1 product

Easy-Read Wall-Mount Temperature and Humidity Meters with Accuracy Certificate

The largest dial meters we offer to view temperature and humidity at a glance

3 products

Other Products

Humidity-Indicating Cards

Check humidity levels of moisture-sensitive inventory and equipment at a glance

9 products

Humidity Controllers

Monitor humidity and control it by automatically turning equipment on and off

2 products

Data Recorder Charts

Place in temperature and humidity data recorders to document readings over time

3 products

Weather Stations

Measure multiple weather conditions at the same time

9 products

Humidistats

Control the humidity in an enclosure or space

6 products

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

6 products

Thickness Gauges

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

6 products

Barometers

Measure atmospheric pressure changes

5 products

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

9 products

Heat Stress Monitors

Measure temperature, humidity, and radiant heat to keep people safe from heat-related hazards

9 products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

4 products

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

3 products

Humidity Meters

Measure relative humidity without complex calculations

4 products

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

3 products

Electrical Resistance Meters

Prevent damage to electronics by checking that surfaces won't discharge static electricity

4 products

Water Detectors

Place near tanks, sump pumps, and pipe lines to alert you to water leaks

2 products