Thermohygrometers

A hygrometer measures the humidity and water vapour in the air. A thermohygrometer measures both humidity and temperature.

Within a volume of air, the maximum amount of water vapour it can hold varies greatly by temperature with cold air holding a fraction of what warmer air will. Most moisture meters use temperature to give the relative humidity (RH) for a particular temperature and display it as a percentage. Most models have a built-in digital LCD display but there are several which use an analogue readout, these are primarily for continuous monitoring.

These instruments all feature built-in displays and some offer features such as datalogging, web bulb temperature or dewpoint.

RS offers a range of thermo-hygrometers, many of which can be calibrated to UCAS or RS Calibration standards to ensure accurate measurements.


What are thermohygrometers used for?


Primarily, thermo-hygrometers are used to test HVAC systems and office environments. They often feature a probe which can be inserted through an air-conditioning duct to get readings from within the ducting.


What's the difference between a thermo hygrometer and a moisture meter?


A hygrometer measures the moister in the air and a moisture meter measures the moisture within a material such as wood, paper or stud walls.


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Description Price Absolute Maximum Temperature Measurement Maximum Humidity Measurement Best Temperature Measurement Accuracy Temperature Measurement Resolution Best Humidity Measurement Accuracy Humidity Measurement Resolution Dewpoint Measurement Meter Type Calibrated Interface Type Printer Functions Power Source Battery Type
RS Stock No. 106-5306
BrandRS PRO
€94.13
Each
units
+50°C 99%RH ±1 °C 0.1°C ±5 % 0.1%RH Yes Handheld - - - Data Hold Battery AAA
New
RS Stock No. 200-5039
Mfr. Part No.0563 6352
BrandTesto
€517.72
Each
units
- - - - - - - - - - - - - -
RS Stock No. 192-6510
BrandRS PRO
€288.00
Each
units
+50°C 99%RH ±1 °C 0.1°C ±5 % 0.1%RH Yes Handheld UKAS - - Data Hold Battery AAA
RS Stock No. 476-909
Mfr. Part No.13/606/2
BrandBrannan
€71.44
Each
units
+50°C - ±0.5 °C - - - - Handheld - - - - - -
RS Stock No. 913-0860
Mfr. Part No.LKM 445
€134.12
Each
units
- - - - - - - - - - - - - -
RS Stock No. 913-0872
Mfr. Part No.LKM 455
€178.11
Each
units
- - - - - - - - - - - - - -
RS Stock No. 433-3736
Mfr. Part No.SONDE HS 18 4/20 MA
BrandEliwell
€408.08
Each
units
- - - - - - - - - - - - - -
RS Stock No. 192-6529
Mfr. Part No.0572 6174
BrandTesto
€356.65
Each
units
+40°C 100%RH ±0.3 °C - ±2 %RH - - - RSCAL - - - - -
RS Stock No. 187-3780
Mfr. Part No.HL-20D
€364.00
Each
units
+60°C 100%RH ±0.3 °C - ±1.3 %RH - Yes Digital - UART - - Battery 1.5 V AA Alkaline
RS Stock No. 433-3742
Mfr. Part No.SONDE HS 18 0/10 VCC
BrandEliwell
€203.79
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 195-9129
BrandRS PRO
€25.12
Each
units
- 99%RH - 0.1 °C, 0.1 °F ±4 %RH 0.1%RH No Digital - - No Measuring Battery 1.5 V AA
RS Stock No. 191-9557
Mfr. Part No.BLD7750
BrandProtimeter
€536.75
Each
units
- 98%RH - - ±2 % - - Handheld - Bluetooth - Dew Point Battery 9V Alkaline
RS Stock No. 192-6516
Mfr. Part No.0572 6172
BrandTesto
€350.60
Each
units
+70°C 100%RH ±0.3 °C - ±2 %RH - - - RSCAL - - - - -
RS Stock No. 192-6514
Mfr. Part No.0572 2154
BrandTesto
€267.72
Each
units
+50°C 100%RH ±0.3 °C - ±2 %RH - - - RSCAL - - - - -
RS Stock No. 187-3783
Mfr. Part No.HP32-S-Set
€491.40
Each
units
+200°C 100%RH ±0.2 K - ±0.8 %RH - Yes Handheld - USB - - Battery Lithium Polymer
RS Stock No. 777-0440
Mfr. Part No.0560 6230
BrandTesto
€151.00
Each
units
+60°C 100%RH ±0.4 °C 0.1°C ±2 %RH, ±3 %RH 0.1%RH - Digital - - - Maximum & Minimum Display Battery 4 x AA
RS Stock No. 136-8254
Mfr. Part No.P01654246
€275.00
Each
units
+60 °C, +140 °F 98%RH 0.5 °C 0.1 °C, 0.1 °F ±2 (10 → 90 %RH) %, ±4 (Outside Range) % 0.1% Yes Digital - Bluetooth, USB, Wireless - Alarm, Automatic Power-OFF, Backlighting, Data Storage, Min-Max-Hold, Record Battery 1.5 V AA/LR6 Alkaline
RS Stock No. 127-8297
BrandRS PRO
€288.07
Each
units
+100 °C, +212 °F 100%RH ±0.4 °C, ±0.8 °F 0.1 °C, 0.1 °F ±3 %RH 0.1%RH Yes Handheld - USB - Alarm, Comparator, Data Hold Battery NEDA 1604, 006P 9V
RS Stock No. 192-6505
BrandRS PRO
€403.09
Each
units
+100 °C, +212°F 100%RH ±0.4 °C, ±0.8 °F 0.1 °C, 0.1°F ±3 %RH 0.1%RH Yes Handheld UKAS USB - Alarm, Comparator, Data Hold Battery NEDA 1604, 006P 9V
New
RS Stock No. 195-9513
BrandRS PRO
€142.84
Each
units
- 99%RH - 0.1 °C, 0.1 °F ±4 %RH 0.1%RH No Digital RSCAL - No Measuring Battery 1.5 V AA
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