Rotronic Instruments HL-20D Digital Hygrometer, Max Temperature +60°C, Max Humidity 100%RH

Subtotal (1 unit)*

£412.08

(exc. VAT)

£494.50

(inc. VAT)

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  • 6 unit(s) shipping from 21 November 2025
  • Plus 6 unit(s) shipping from 03 December 2025
  • Plus 9 unit(s) shipping from 31 December 2025
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Per unit
1 +£412.08

*price indicative

Calibration Options:

Each

£524.50

(exc. VAT)

£629.40

(inc. VAT)

Each

£569.00

(exc. VAT)

£682.80

(inc. VAT)

RS Stock No.:
187-3780
Mfr. Part No.:
HL-20D
Brand:
Rotronic Instruments
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Brand

Rotronic Instruments

Absolute Maximum Temperature Measurement

+60°C

Maximum Humidity Measurement

100%RH

Hygrometer Type

Digital Hygrometer

Best Temperature Measurement Accuracy

±0.3 °C

Best Humidity Measurement Accuracy

±1.3 %RH

Dewpoint Measurement

Yes

Meter Type

Digital

Interface Type

UART

Power Source

Battery

Battery Type

AA

Battery Life

13 month

Weight

210g

Model Number p

HL-20D

Minimum Operating Temperature

0°C

Maximum Operating Temperature

+50°C

Rotronic HL-20D HydroLog Stand Alone Data Logger.


There are many environments and applications where temperature and humidity need to be monitored and data recorded to ensure that conditions are within specified tolerances, this is often a requirement of Quality Management Systems. These include museums, galleries, laboratories, test facilities, print rooms, production and storage areas, offices and during product transportation.

The Rotronic compact temperature and humidity HygroLog HL-20D stand-alone logger is the perfect device. Using AirChip3000 technology, it provides high precision measurements with an integrated sensor (0.8 %rh, 0.3 °C at ambient) with a configurable logging interval from 5 seconds to 1 hour. The logger has a long battery life and can record measurements for many months. An LC graphical display with backlight is a useful feature and shows temperature and humidity values clearly.