JUMO hydroTRANS S20
€209.90*
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Product information "JUMO hydroTRANS S20 "
Humidity and temperature transmitter from JUMO with RS 485 Modbus interface
JUMO hydroTRANS S20 – Humidity and temperature transmitter (RS-485 Modbus) Type: 907042/11-0-15-530/000
With this version, you receive a digital humidity and temperature transmitter for monitoring indoor air quality. Thanks to the direct bus connection, it is particularly suitable for building automation, climate control, and industrial monitoring systems.
The JUMO hydroTRANS S20 is a wall-mounted transmitter for monitoring relative humidity and temperature in indoor areas as well as protected outdoor environments. It is designed for applications in which environmental conditions are to be continuously recorded and digitally integrated into a higher-level system.
Technical data
- Basic type extension: RH-T
- Version: Standard
- Measuring range: 0 … 100 % RH / -40 … +80 °C
- Measured parameters: relative humidity, temperature
- Output: RS-485 Modbus
- Type addition: without
Advantages and technical features of the JUMO hydroTRANS S20
- Digital communication via RS-485 Modbus
- Combined measurement of humidity and temperature
- Wide measuring range up to 100 % RH and -40 to +80 °C
- Easy integration into building and automation systems
- Robust design for continuous monitoring
The measuring range covers 0 to 100 % relative humidity as well as temperatures from -40 to +80 °C. The measured values are output via an RS-485 Modbus interface, enabling direct integration into building management, automation, and monitoring systems.
The wall mounting allows flexible and space-saving installation at relevant measuring points in room or process climate applications. This makes the device particularly suitable for applications where continuous monitoring of air quality is required.
The integrated multisensor system simultaneously records humidity and temperature values and ensures stable measurement acquisition during operation. Optionally, a plastic sinter filter can be used to protect the sensor from dust and particles, thereby supporting the reliability of the measurement.
Typical areas of application
- Building management and smart building systems
- Ventilation and air conditioning systems
- Indoor climate monitoring
- Storage rooms and archives
- Industrial environmental monitoring
- Technical building equipment
- Protected outdoor areas
| Pos. | Feature | Code | Description |
|---|---|---|---|
| (1) | Basic type | 907042 | JUMO hydroTRANS S20 – Humidity and Temperature Transmitter with optional CO2 module for wall mounting |
| (2) | Basic type extension | 11 | RH – T |
| 12 | RH – T – CO2 | ||
| (3) | Version | 0 | Standard |
| (4) | Measuring range | 15 | 0 to 100 % RH / -40 to +80 °C |
| 17 | 0 to 95 % RH / -10 to +60 °C / 10,000 ppm CO2 | ||
| (5) | Output | 009 | 4 to 20 mA (factory setting) / 0 to 10 V combined output, configurable |
| 530 | RS485 Modbus | ||
| 535 | SPE with PoDL (Modbus TCP Slave) a | ||
| (6) | Extra code | 000 | None |
| 775 | DAkkS (DKD) calibration (service), specify calibration points in plain text | ||
| 994 | Integrated display | ||
| Note a: Output 535 – SPE with PoDL (Modbus TCP Slave) is available only in combination with the CO2 module and an integrated display. | |||
| Designation | (1) | (2) | (3) | (4) | (5) | (6) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ordering key | / | - | - | - | / | , …a | |||||
| Ordering example | 907042 | / | 12 | - | 0 | - | 17 | - | 009 | / | 994 |
| Note a: Multiple extra codes are listed consecutively and separated by commas. | |||||||||||
Frequently Asked Questions
Yes, it can be easily integrated via the RS-485 Modbus interface.
It measures humidity and temperature simultaneously.
For buildings, equipment rooms, warehouses, and industrial monitoring.
Yes, it is designed for continuous operation.
It is simply mounted on the wall.
Yes, the Modbus interface enables direct integration.
An optional filter can be used to protect the sensor.
Other attributes
| Ausgang | RS485 Modbus |
|---|---|
| Customs tariff number | 90258040 |
| Messbereich (Temperatur & relative Feuchte) | 0...100% rF / -40°C...+80°C |
| Messparameter | Relative Feuchte, Temperatur |
| Requirements | standard / specification |
|---|---|
| The device must be connected to a circuit that meets the requirements for “energy-limited circuits”. | DIN EN IEC 61010-1:2020 |
| Power supply | DC 24 V, -33 % / +33 %, SELV, PELV |
|---|---|
| power consumption | ≤ 2,4 W |
| overvoltage category | II |
| Degree of contamination | 2 |
| protection class | DIN EN 61140, Class III (safety extra-low voltage) |
| electrical connection | |
| connection elements | spring-loaded terminal |
| connecting cable |
|
| stripping length |
|
| temperature resistance | ≥ 80 °C |
| power supply | DC 24 V, -58 % / +33 %, SELV, PELV |
|---|---|
| power consumption | ≤ 2,4 W |
| overvoltage category | II |
| pollution degree | 2 |
| protection class | DIN EN 61140, class III (safety extra-low voltage) |
| electrical connection | |
| connection elements | spring-cage terminal |
| connecting cable |
|
| stripping length |
|
| temperature resistance | ≥ 80 °C |
| property | value |
|---|---|
| supply voltage | DC 18 to 30 V, PELV |
| current draw | ≤ 100 mA |
| power consumption | ≤ 1,8 W |
| overvoltage category | II |
| pollution degree | 2 |
| protection class | DIN EN 61140, class III (Ssafety extra-low voltage) |
| PoDL-class | class 11, IEEE 802.3cg |
| PoDL classification | SCCP- or Forced-Mode |
| electrical connection | |
| connection element | M12 connector |
| M12 connector | IEC 63171-5 |
| design | 2-pin, shielded |
| ingress protection (IP rating) | IP67 |
| connecting cable | IEC 61156-13, IEC 61156-14 |
| cable design | 2-core, copper, shielded |
| bandwidth | ≥ 20 MHz |
| cable length | ≤ 500 m (AWG22 at DC 24 V) |
| DC loop resistance | < 59 Ω |
| temperature resistance | ≥ 80 °C |
| property | value |
|---|---|
| measuring range |
|
| measurement accuracy |
|
| sampling rate | 1 s |
| Propertyt | Value |
|---|---|
| measuring range |
|
| measurement accuracy |
|
| sampling rate | 1 s |
| property | Value |
|---|---|
| General information | |
| Availability |
Optional for devices with an analogue output and RS485, factory-set for devices with SPE |
| measurement range | 400 to 10 000 ppm |
| measurement accuracy & reference conditions | |
| measurement accuracy | ±(50 ppm + 5 % of the measured value) |
| ambient temperature | 25 °C |
| air pressure | 1013 hPa |
| humidity | 50 % RH |
| measuring range | 400 to 1 000 ppm |
| sampling rate | 30 s |
| property | Value |
|---|---|
| current output | |
| signal range | 4 to 20 mA |
| output signal limits | 0 to 22 mA |
| measurement accuracy | ≤ ±0,05 % relative to the end of the signal range (20 mA) |
| temperature influence | ±50 ppm/K |
| load influence | ≤ ±0,02 % per 100 Ω |
| load | ≤ 500 Ω |
| property | Value |
|---|---|
| voltage output | |
| signal range | 0 to 10 V |
| output signal limits | 0 to 11 V |
| accuracy | ≤ ±0,05 % relative to the end of the signal range (10 V) |
| temperature influence | 50 ppm/K |
| load influence | ≤ ±15 mV |
| load | ≥ 10 kΩ |
| property | specification |
|---|---|
| function | transfer of configuration data and device information |
| communication | via end device and setup software |
| transmission standard | USB 2.0 |
| connector type | Micro-B |
| current consumption | ≤ 500 mA |
| cable length | ≤ 5 m |
| property | specification |
|---|---|
| function | Transfer of process data, configuration data and device information |
| communication | via Modbus master |
| galvanic isolation | functional |
| data transmission | serial |
| transmission protocol | Modbus RTU |
| data format |
|
| data transmission rate |
|
| minimum response time | 0 to 500 ms |
| device address | 1 to 254 |
| property | specification |
|---|---|
| function | Transmission of process data, configuration data and device information, power supply via PoDL |
| communication | Via the terminal and the JUMO Cloud, Modbus master |
| SPE standard | 10BASE-T1L |
| transmission protocol | Modbus TCP, integrated JUMO Cloud gateway |
| data transmission rate | 10 Mbit/s |
| property | specification |
|---|---|
| Type | TFT-Display |
| Size |
Display Area: 35,04 mm × 28,03 mm Screen diagonal: 1,77″ |
| resolution | 128 × 160 px RGB |
| brightness | 11 Steps (configurable) |
| property | specification |
|---|---|
| Permissible ambient temperature |
Permissible ambient temperature: -40 to +80 °C With CO₂-Modul: -10 to +60 °C With display: -20 to +60 °C |
| Permissible storage temperature |
Permissible storage temperature: -40 to +80 °C With CO₂ module: -30 to +70 °C With display unit: -30 to +60 °C |
| Degree of protection | IP65 (DIN EN 60529) |
| Max. installation altitude | 5300 m above sea level |
| Climatic conditions / climatic class | DIN EN IEC 60721-3-3 / 3K24 |
| Relative humidity | ≤ 100 % (95 % with CO₂ module), non-condensing |
| Electromagnetic compatibility (EMC) | DIN EN IEC 61326-2-3:2022 |
| EMC – Emissions | Class Ba |
| EMC – Immunity | Industrial requirements |
| vibrationb |
vibration: DIN EN 60068-2-6 Deflection: 0,15 mm from 10 to 58,1 Hz Acceleration: 20 m/s² from 58,1 to 150 Hz |
| Shockb |
Shock resistance according to DIN EN 60068-2-27 Peak acceleration: 150 m/s² Shock duration: 11 ms |
|
a The product is suitable for industrial use as well as for domestic and small business use. b The CO₂ module is sensitive to vibrations. Due to its design, vibrations may affect the measurement result. |
|
| property | specification |
|---|---|
| Materials of housing / display cover | PC / PMMA |
| Weight | Approx. 200 g |