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Basic Humidity Transmitter - Rotronic HF1

Updated:2025-03-13

Brand: PST/Rotronic
Model: HF1
Description: The HygroFlex1 series contains inexpensive HVAC transmitters for relative humidity and temperature measurement. The devices are equipped with the Rotronic tried-and-tested Hygromer? IN-1sensor and boa
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Product Details

Basic Humidity Transmitter - Rotronic HF1 Description：

Datasheet

Fixed Humidity and Temperature Measurement Probe

Features

Range of application -20…60 °C / 0…100 %RH

Accuracy: ±2 %RH, ±0.3 K, at 23 °C

Simple and cost efficient

Different housings available

The HygroFlex1 series contains inexpensive HVAC transmitters for relative humidity and temperature measurement. The devices are equipped with the Rotronic tried-and-tested Hygromer® IN-1sensor and boast unbeatable value for money.

Specifications

	HF1
Type	Fixed probe
Markets	Light Industry, HVAC, Museum/Library
Operating Range	-20...50°C (type S), -20...60°C (type W, D, F) 0...100 %RH (non-condensing)
Accuracy at 23°C	<± 2 %RH (10…90 %RH) / ± 0.3 K
Long-Term Stability	<1.5% rH / year
Sensors	Humidity: Rotronic Hygromer IN-1 / Temperature: Thermistor
Display	Version with and without available
Power Supply	12..28 VAC / 15…40 VDC
Output Parameters	Humidity and Temperature
Output	2 analogue outputs 2-wire or 3/4 wire, freely scalable
Output Signals	2 wire: 4…20 mA 3/4 wire: 0(4)…20mA 0…1/5/10 VDC
Housing Type	Wall, Duct and Space
Housing Material	ABS
Dimensions	Wall 105x172 mm