Rotronic Hygrostat HS5 Humidity & Temperature Transmitter

Rotronic Hygrostat HS5 Humidity & Temperature Transmitter

Rotronic Hygrostat HS5 Humidity & Temperature Transmitter

Rotronic Hygrostat HS5 series of transmitters measures relative humidity and temperature that are converted to psychrometric parameters as requested regarding the application.

Measurements are read via a ethernet cable and when the preset switching threshold is reached a relay switches. The Hygrostat HS5 series measure with interchangeable HygroClip2 probes, enabling an unrivaled class of accuracy.

Hygrostat HS5 offers unique calibration and adjustment process in relation to other products that are currently on the market.

The HS5 transmitters offer repeatability of < 0.02 %RH and with the HC2-S guaranteed system accuracy of < 0.8 %RH and 0.1 K.

Typical applications in the food and pharmaceutical industries, printing and paper industries, meteorology, the agricultural sector, archeology, HVAC applications, etc

Rotronic Hygrostat HS5 Humidity & Temperature Measurement Transmitter Product Benefits

  • Functional display (optional)-
    • Measurement values displayed on a clear, backlit graphics display with trend indicator
    • Configuration possible via keyboard
  • Proven housing – Robust, industrial-quality housing
  • Communication
    • 2 analog outputs: freely allocatable and scalable
    • Easy to install
  • Power supply
    • 15…40 VDC/12…28 VAC
  • Flexible choice of probes
    • Connection of a wide range of probes possible
    • Connection of simulators facilitates process validation

Rotronic Hygrostat HS5 transmitter

In addition to being used with the Rotronic HygroClip 2, the HC2-S probe can be used as a standalone device using either the analog output signals or the probe digital interface.

Connectors, cables and digital interface adapters are available to this purpose. Digital integration with OEM applications is facilitated by the probe communication protocol options.

Key user functions of the Rotronic Hygrostat HS5 transmitter humidity and temperature transmitter include:

  • Measures relative humidity and temperature
  • All psychrometric calculations available
  • Outstanding accuracy and repeatability
  • Highest precision
  • Dry mechanical relay
  • Digital communication via Ethernet
  • Freely scalable analog signals
  • Update possible via the Internet

Rotronic Hygrostat HS5 Humidity And Temperature Transmitter

Product Specifications

Device Type Hygrostat and thermostat
Probe Type All HygroClip2 probes
Parameters Relative humidity and temperature
Dimensions 129 x 72 x 45
Weight 240 g
Range of Application -40…60 °C / 0…90 %RH
-10…60 °C / 0…90 %RH with LCD
Accuracy at 23 ±5 °C Probe dependent
Measurement Ranges Probe dependent
Switch Output 1 relay (freely configurable)
Switching Capacity <50 VAC / <75 VDC / <1 A
Power Supply  15…40 VDC / 12…28 VAC
<70 mA (Ethernet version <150 mA)
Electrical Connections 1 x M16 x 1.5, to terminals
Analogue Output Signal 0…10 V, 4…20 mA, freely scalable
IP Protection Rating  IP65
CE/ EMC Conform EMC Directive 2004/108/EC


Whether a simple plug and play probe is required to measure ambient conditions or a more sophisticated cable probe for high temperature or special applications, the options available for the Rotronic Hygrostat HS5 mean most requirements can be met.

All Hygroclip2 probes can be individually calibrated and adjusted to increase measurement precision.

The range of Hygroclip2 probes available include:

Rotronic Hygroprobe2 Operating range: - 50...100 °C Housing: polycarbonate or stainless steel

Rotronic Hygroprobe2 Operating range: – 50…100 °C
Housing: polycarbonate or stainless steel

Rotronic Hygroprobe for special applications

Rotronic Hygroprobe for special applications Operating range: -100…200 °C and 0…100 bar (0…1450 PSI)
Variations: polycarbonate or stainless steel
(1): HF520 transmitter is not compatible with industrial metal probes


The pharmaceutical industry is one of the largest users of humidity measurement equipment. Most drugs are sensitive to variations in humidity and moisture levels, so these need to be considered and controlled using measurement instruments, probes and sensors for the final products to be consistent in quality and performance.

Humidity Measurement Applications

Humidity instruments are used to both control (transmitters) and monitor (transmitters or data loggers) these conditions during “accelerated conditions” drug testing.

Production machines, driers, tableters, and coaters are all sensitive to humidity – quality control requires machine monitoring, area monitoring and final product Equilibrium Relative Humidity (ERH) measurement.

Clean room environments are humidity critical – environmental monitoring system (EMS) and measurement is validated to conform with regulatory requirements.


View the current Rotronic catalogue :


T&D distribute Rotronic probes, instruments, transmitters, data loggers, indicators and sensors for the measurement of dew point, flow, air velocity, process pressure, carbon dioxide and temperature. Click an icon for further information…..


Rotronic - Dew Point Measurement

Low Dew Point

Rotronic - Flow Measurement

Flow & Air Velocity

Rotronic - Process Pressure Measurement

Process Pressure

Rotronic - CO2 Measurement

Carbon Dioxide

Rotronic - Temperature Measurement


➡ Did you know? T&D supply VEGA process instrumentation for pressure, level and point level (switching) measurement.

Data Sheets