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 Interface Type Printer Functions Power Source Battery Type Battery Life
RS Stock No. 191-9564
Mfr. Part No.082.034A
BrandLaserliner
MYR161.28
Each
units
- 99%RH - - ±2 %RH - - Digital - - Dew Point Battery LR44 -
RS Stock No. 433-3742
Mfr. Part No.SONDE HS 18 0/10 VCC
BrandEliwell
MYR1,061.62
Each
units
- - - - - - - - - - - - - -
RS Stock No. 191-9557
Mfr. Part No.BLD7750
BrandProtimeter
MYR3,168.39
Each
units
- 98%RH - - ±2 % - - Handheld Bluetooth - Dew Point Battery 9V Alkaline -
RS Stock No. 348-8289
Mfr. Part No.DPWC110000
BrandCarel
MYR720.78
Each
units
+50°C 90%RH ±1.2 °C - ±3 %RH - - - - - - Mains - -
RS Stock No. 913-0872
Mfr. Part No.LKM 455
MYR913.90
Each
units
- - - - - - - - - - - - - -
RS Stock No. 187-3783
Mfr. Part No.HP32-S-Set
MYR2,521.37
Each
units
+200°C 100%RH ±0.2 K - ±0.8 %RH - Yes Handheld USB - - Battery Lithium Polymer 48 h
RS Stock No. 913-0876
Mfr. Part No.LKM 456
MYR913.90
Each
units
- - - - - - - - - - - - - -
RS Stock No. 187-3784
Mfr. Part No.HC2A-WIN-USB
MYR2,234.55
Each
units
+100°C +100%RH ±0.1 K - ±0.8 %RH - Yes Handheld UART - Alarm Mains - -
RS Stock No. 913-0860
Mfr. Part No.LKM 445
MYR688.17
Each
units
- - - - - - - - - - - - - -
RS Stock No. 187-3782
Mfr. Part No.HP32
MYR1,754.29
Each
units
+200°C 100%RH ±0.2 K - ±0.8 %RH - Yes Handheld USB - - Battery Lithium Polymer 48 h
RS Stock No. 145-0241
Mfr. Part No.0572 2154
BrandTesto
MYR854.45
Each
units
+50°C 100%RH ±0.3 °C - ±2 %RH - - - - - - - - -
RS Stock No. 145-0240
Mfr. Part No.0572 2155
BrandTesto
MYR1,139.26
Each
units
+70°C 100%RH ±0.3 °C - ±2 %RH - - - - - - - - -
RS Stock No. 187-3775
Mfr. Part No.HC2-C04
MYR3,495.24
Each
units
+85°C 100%RH ±0.1 K - ±0.8 %RH - Yes Analogue UART - - Mains - -
RS Stock No. 136-8254
Mfr. Part No.P01654246
MYR1,462.98
Each
units
+140 °F, +60 °C 98%RH 0.5 °C ± 1 digit 0.1 °F, 0.1 °C 2% RH + 1 digit 0.1% Yes Digital Bluetooth, USB 2.0 - Alarm, Automatic Power-OFF, Backlighting, Data Storage, Min-Max-Hold, Record Battery 1.5 V AA/LR6 Alkaline 1000 h
RS Stock No. 724-4190
Mfr. Part No.DTH10
BrandKane
MYR354.73
Each
units
+50°C 95%RH ±1 °C 0.1°C ±5 %RH - - Pen Digital - - Hold, Record Battery CR2032 150 h
RS Stock No. 348-8302
Mfr. Part No.DPDC110000
BrandCarel
MYR1,255.88
Each
units
+50°C 90%RH ±1.2 °C - ±3 %RH - - - - - - Mains - -
RS Stock No. 136-5501
Mfr. Part No.HC2A-S
MYR1,517.68
Each
units
+100°C 100%RH ±0.1 K 0.1°C ±0.5 %RH <1%RH Yes Handheld UART - Measuring - - -
RS Stock No. 433-3736
Mfr. Part No.SONDE HS 18 4/20 MA
BrandEliwell
MYR2,093.87
Each
units
- - - - - - - - - - - - - -
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