Handheld Hygrometers, Psychrometers & WBGTs

Lead Time: 1-6 Days

Chauvin Arnoux CA1246 Datalogging Thermo Hygrometer

(no reviews)

£250.80 £209.00
- Dual measurements of temperature and humidity levels
- Datalogging - log up to 1 million individual data records over a period of time
- Built-in backlight, automatic power off and extra long, up to 3 year battery life
209 Reward Points

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P01654246

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KIMO HD110 Thermo-Hygrometer

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£261.36 £217.80
- Air temperature and humidity meter with flexible coiled probe
- Also calculates dewpoint
- Backlight, MAX/MIN mode and HOLD function
217 Reward Points

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KIMO-HD110

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Extech HD500 Psychrometer with Infrared Thermometer

(no reviews)

£285.60 £238.00
- Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C)
- IR Thermometer: 30:1 distance to target ratio
- Type K Thermometer for contact temperature measurement to 2501°F (1372°C)
238 Reward Points

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HD500

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Fluke 971 Temperature Humidity Meter

(1)

£322.80 £269.00
- Simultaneously measures humidity and temperature
- Also calculates dew point and wet bulb
- High accuracy
269 Reward Points

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FLUENV1

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Only 1 In Stock

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Extech HT200 Heat Stress Wet Bulb Globe Temperature Meter

(no reviews)

£342.00 £285.00
- Measures exactly how hot it feels outside using many different measurements
- Calculates wet bulb globe temp, black globe temp, air temp, relative humidity, dew point and wet bulb
- Memory storage for up to 50 readings
285 Reward Points

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HT200

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Protimeter Hygromaster L Thermo-Hygrometer – Choice of Stick

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£354.60 £295.50
- Measure ambient humidity, temperature, dewpoint, and specific humidity
- Delivers excellent accuracy, simple operation, and fast performance
- Two versions available: one with a QuickStick and one with a HygroStick
295 Reward Points

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BLD775XL

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Lead Time: 1-6 Days

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Protimeter BLD7750 Hygromaster 2 with Short Hygrostick and Case

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£418.80 £349.00
- Measure air temperature, surface temperature and relative humidity
- Hygrostick sensor for measuring relative humidity between 30 and 100%
- Non-contact, infrared temperature sensor with a range of -20 to 80°C
349 Reward Points

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BLD7750

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Lead Time: 1-6 Days

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Protimeter Hygromaster 2 with QuickStick Kit

(no reviews)

£474.00 £395.00
- Can be used to measure relative humidity between 1-100%
- Can be used to take infra-red, non-contact, surface temperature measurements between -4°F and 176°F / -20°C and 80°C
- Data logging capabilities
395 Reward Points

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BLD7751

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Protimeter Hygromaster 2 Thermo-Hygrometer – Choice of Stick

(no reviews)

£556.80 £464.00
- Non-contact IR temperature measurements
- Psychrometric calculations
- Data logging
464 Reward Points

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BLD775X

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Protimeter Hygromaster2 with Hygrostick Kit 1

(no reviews)

£574.80 £479.00
- Kit optimised for taking surface temperature and equilibrium relative humidity measurements of solid walls and floors
- All instruments feature a rugged design suitable for challenging environments
- Ranges: 30-100% RH; temperature: 20°C to 80°C / -4°F to 176°F
479 Reward Points

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BLD7758

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Lead Time: 1-6 Days

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Protimeter Hygromaster2 with Hygrostick Kit 2

(no reviews)

£634.80 £529.00
- All the included instruments can be used together to measure the surface relative humidity of concrete floors and walls
- When used with the Hygrostick, the Hygromaster2 has a relative humidity range of 30-100%
- Hygromaster2 includes an IR temperature probe for surface temperature measurements
529 Reward Points

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BLD7759

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Lead Time: 1-2 Weeks

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Protimeter BLD7714-DM Hygromaster2 and Digital Mini Kit

(no reviews)

£678.00 £565.00
- Includes Protimeter’s Hygromaster2 with QuickStick Short and Digital Mini Moisture Meter
- Hygromaster2 functions as a humidity meter and thermometer
- Digital Mini Moisture Meter is a pin-type moisture meter
565 Reward Points

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BLD7714-DM

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Protimeter BLD7714-AQ Hygromaster 2 and Aquant Kit

(no reviews)

£742.80 £619.00
- Includes the Protimeter BLD7750 Hygromaster 2 Thermo-Hygrometer, Aquant Moisture Meter, and a Thermoformed Case
- Use the BLD7750 Hygromaster 2 to measure air temperature, relative humidity, and surface temperature
- The Protimeter Aquant Moisture Meter can be used to perform non-invasive moisture readings of a variety of materials
619 Reward Points

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BLD7714-AQ

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Only 1 In Stock

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Protimeter BLD7714-SM Hygromaster 2 and Surveymaster Kit

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£918.00 £765.00
- Includes Protimeter’s Hygromaster2 Thermo-Hygrometer, Surveymaster Dual Moisture Meter and a Thermoformed Case
- The Hygromaster 2 can be used to measure air and surface temperature, and relative humidity
- The Surveymaster Moisture Meter is ideal for establishing the cause and extent of dampness in buildings
765 Reward Points

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BLD7714-SM

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Free UK Delivery

Protimeter Flood Kit – Hygromaster L, Surveymaster, & Baseboard & Wall Probes

(no reviews)

£1,026.00 £855.00
- Easy-to-use, accurate & efficient
- Pin & pinless moisture meter
- Take readings in wall cavities & crawlspaces
855 Reward Points

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BLD5975

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Lead Time: 2-3 Weeks

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Protimeter BLD7750-FL Hygromaster2 Flooring Kit

(no reviews)

£1,110.00 £925.00
- Includes the Protimeter Hygromaster2 and a selection of accessories optimised for in situ, ASTM F2170 complaint moisture measurements of concrete floors
- Hygromaster2 functions as a thermometer and hygrometer
- Ranges: 30-100% RH; temperature: -20°C and 80°C / -4°F and 176°F
925 Reward Points

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BLD7750-FL

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About Handheld Hygrometers, Psychrometers & WBGTs

Our environment is made of several different elements. While we generally think of oxygen, carbon dioxide, and even nitrogen as forming the bulk of the Earth's atmosphere, the water content in the air is also constantly present. A good quality humidity tester is useful for those who routinely find themselves working in humid environments.

If you've got a lot of people working in one place, keeping the humidity in check is essential. Many people become uncomfortable in humid environments and can even suffer adverse health effects if they are exposed for long enough periods. Asthmatics are particularly affected by humid environments.

It is therefore important for you to regularly test the humidity of an environment to ensure the safety of yourself and your workforce.

High humidity, along with temperature, also affects electronic circuits and machinery, so if you want to keep your installation working within safe limits a hygrometer will be a worthwhile investment. Here are some of the effects you can expect:

Component	Temperature Effect	Humidity Effect
Ceramic capacitors	Changes in dielectric constant and capacitance lowered insulation resistance with high temp.	-
Electrolytic capacitors	Increased electrolyte leakage; shortened life, a large change in capacitance, increased series resistance with low temp.	Decreased insulation resistance increased dielectric breakdown increase in shorts
Tantalum Capacitors	Electrolyte leakage; change in capacitance insulation resistance; series resistance	Decreased insulation resistance increased dielectric breakdown increase in shorts
Transistors	Increased leakage current; changes in gain; increases in opens and shorts	Increased leakage current; decreased current gain, if sealed not effect
Standard Connectors	Flashover, dielectric damage	Shorts fungus; corrosion of contacts lowered insulation resistance
Crystals	Drift	Drift
Switches	Oxidation of contacts	Contact arcing
Thermistors	Increased shorts and opens	Change in resistance

Humidity sensors are also quite commonly referred to as hygrometers. These devices are generally defined into two separate types - humidity meters and humidity sensors. The major difference between the two is that humidity meters are designed as handheld, portable instruments to be carried out and test various applications; a humidity sensor is designed to be mounted in one location such as a wall, and will constantly catalogue the humidity (and other parameters such as temperature) in the environment it is placed in.

A humidity sensor is an extremely beneficial tool in a wide variety of applications. Whether it's simply maintaining the humidity levels in an office or ensuring that excessive water content isn't in the air when storing delicate materials such as wood, these sensors help to alert users when humidity is too high and action must be taken.

Many humidity meters include the ability to measure dewpoint, which is basically when water vapour in an area starts to condense into liquid water. By determining this value users can ensure that humidity in the air doesn't get the chance to turn into water, and this in turn increases safety and stops damage to properties and components.