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Rotronic HP21 Hygropalm

KSh 49588

In stock

Rotronic HP21 Hygropalm is a highly accurate handheld indicator that displays relative temperature, humidity and dew point temperature. The HP21 is ideal for spot-checking HVAC installations, manufacturing or storage areas, and any ambient air measurement.

Applications: HVAC, Food, Meteorological, Paper, Pharmaceutical etc

Rotronic HP21 Hygropalm indicator offers an extensive set of settings and functions that can be configured and enabled by the user with the rotronic HW4 software. With its high-end design, Thermo hygrometer is ideal to use even as a simple humidity and temperature indicator.

Features Of Rotronic Hygropalm:

  • Range of application: 10 to 60°C & 0 to 100% RH
  • Accuracy at 23°C ±5 K: 1 % RH, 0.2 K
  • Adjusted at 23°C and 10, 35, 80% RH
  • Service interface (UART).
  • Calculation of dew and frost point

Additional information



Model No


Measuring Parameters

Relative Humidity, Temperature

Temperature Range

-10 to +60°C

Temperature Accuracy

± 0.2°C

Temperature Resolution


Humidity Range

0 to 100% r. h., non-condensing

Humidity Accuracy

1.0% RH

Humidity Resolution

< 0.02% RH


Humidity sensor : Hygromer M1-R ; Temperature sensor : PT100 1/3 DIN Class B

Material Of Construction

Polycarbonate plastic cage, black

Power Supply

9V battery


1 Year Manufacturing Warranty


274 x 72 x 35 mm


600 Grams

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KSh 49588

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