Relative Humidity Meters | McMaster-Carr

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Display Type

Light Indicator

Relative Humidity

Measures

Air Quality Index

Ambient Temperature

Barometric Pressure

Black Globe Temperature

Carbon Dioxide Level

Equivalent Carbon Dioxide

Heat Stress Index

Relative Humidity

Total Volatile Organic Compound Concentration

Wet Bulb Temperature

Measurement Unit

Feet per Minute

Kilometers per Hour

Meters per Second

Relative Humidity

Meter Type

Certificate Type

Accuracy Certificate

Calibration Certificate Traceable to NIST

Maximum Temperature

Less than 120° F

120° F to 124.9° F

125° F to 149.9° F

150° F to 174.9° F

175° F or greater

Probe Type

Wireless Sensor

Relative Humidity Accuracy

Mounting Location

For Use With

Temperature Features

Audible High/Low Alarm

Data Hold Function

Min./Max. Display

Min./Max. Memory

Visual High/Low Alarm

Housing Material

Stainless Steel

Minimum Dew Point

DFARS Specialty Metals

Mount Type

Minimum Temperature

-25° F or less

-24° F to -1° F

0° F to 24° F

25° F to 39° F

40° F or greater

-45° C or less

-44° C to -25° C

-24° C to -15° C

-14° C to -10° C

Greater than -10° C

Power Source

Height

Maximum Indoor Temperature

Battery Size

REACH

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

Minimum Indoor Temperature

Voltage

24V AC to 30V AC

100V AC to 240V AC

8V DC to 15V DC

How can we improve?

98 Products

Measuring and Inspecting

Temperature and Humidity Meters

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

Humidity Meters

Humidity Meters

Measure relative humidity without complex calculations

Thermometers

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

Humidity-Indicating Cards

Humidity-Indicating Cards

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

Humidity-Indicating Plugs

Humidity-Indicating Plugs

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

Data Recorders

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

Data Recorder Charts

Data Recorder Charts

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

Airflow Meters

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

Barometers

Measure atmospheric pressure changes

Electrical Resistance Meters

Electrical Resistance Meters

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

Weather Stations

Weather Stations

Measure multiple weather conditions at the same time

Fluid Handling

Temperature and Humidity Transmitters

Temperature and Humidity Transmitters

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

Humidity Controllers

Humidity Controllers

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

Humidistats

Control the humidity in an enclosure or space

Water Detector Sensors

Water Detector Sensors

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

Electrical

Development Board Sensor Modules

Development Board Sensor Modules

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

Safety Equipment

Heat Stress Monitors

Heat Stress Monitors

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)