current position:home page>Products>Analysis Instrument>PST>

Mid Range Industrial Humidity Transmitters - Rotronic HF3 and HF4

Updated:2025-03-13

Brand: PST/Rotronic
Model: HF3 and HF4
Description: The HygroFlex3 series is ideal for all applications where good accuracy measurement of humidity and temperature is of critical importance. The transmitters can be used in a wide range of industries.Th
Data download

Feedback
WeChat

QQ

Online Service

Product Details

Mid Range Industrial Humidity Transmitters - Rotronic HF3 and HF4 Description：

Datasheet HF3 Instruction Manual HF4 Instruction Manual

Fixed Humidity and Temperature Measurement Probe

HF3 Features

Range of application up to -40…60 °C / 0…100 %RH

Accuracy: Up to ±1.5 %RH, ±0.2 K, at 23 °C

GAMP compliant (HygroSoft Software)

Different housings available

HF4 Features

Range of application up to -50…100 °C / 0…100 %RH

Accuracy: Up to ±1 %RH, ±0.2 K, at 23 °C

GAMP compliant (HygroSoft Software)

Different housings available

The HygroFlex3 series is ideal for all applications where good accuracy measurement of humidity and temperature is of critical importance. The transmitters can be used in a wide range of industries.

The HygroFlex4 series is ideal for all applications where good accuracy measurement of humidity and temperature is of critical importance. The transmitters can be used in a wide range of industries.

HF3 Specifications

	HF3
Type	Fixed probe
Markets	HVAC
Operating Range	-40…60 °C / 0…100 % RH
Accuracy at 23°C	<± 1.5 %RH / ± 0.2 K
Long-Term Stability	<1 % rH / year
Sensors	Humidity: Rotronic IN1 / PT100 class A
Display	Version with and without available
Power Supply	HF32 2-wire: 10…28 VDC HF33 3/4 wire: 18…40 VDC / 13…28 VAC
Output Parameter	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 mount
Housing Material	ABS
Dimension	Wall 101x182 mm

HF3 Specifications

	HF4
Type	Fixed probe
Markets	HVAC
Operating Range	-50…100 °C / 0…100 % RH
Accuracy at 23°C	<± 1 %RH / ± 0.2 K
Long-Term Stability	<1 % rH / year
Sensors	Humidity: Rotronic IN1 / PT100 class B
Display	Version with and without available
Power Supply	HF42 2-wire: 20…28 VDC HF43 3/4 wire: 18…40 VDC / 13…28 VAC
Output Parameter	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 and Duct mount
Housing Material	ABS
Dimension	Wall 129 x157 mm