JUMO hydroTRANS S20

Article number: 802102

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JUMO hydroTRANS S10, humidity and temperature transmitter, side view

JUMO hydroTRANS S20, humidity and temperature transmitter, front view

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Version

Measuring range(s): 0 ... 95 % rH / -10 ... +60 °C / 10,000 ppm, Output: RS-485 Modbus

Measuring range(s): 0 ... 95 % rH / -10 ... +60 °C / 10,000 ppm, output: 4 ... 20mA / 0 ... 10V combi output configurable

Measuring range(s): 0 ... 95 % rH / -10 ... +60 °C / 10,000 ppm, output: 4 ... 20mA / 0 ... 10V combi output configurable, extra code: with integrated display

Measuring range(s): 0 ... 95 % rH / -10 ... +60 °C / 10,000 ppm, output: RS-485 Modbus, extra code: with integrated display

Measuring range(s): 0 ... 95 % rH / -10 ... +60 °C / 10,000 ppm, output: SPE with PoDL (Modbus TCP slave), extra code: with integrated display

Measuring range(s): 0 ... 100 % rH / -40 ... +80 °C, output: 4 ... 20mA / 0 ... 10V combi output configurable

Measuring range(s): 0 ... 100 % rH / -40 ... +80 °C, output: 4 ... 20mA / 0 ... 10V combi output configurable, extra code: with integrated display

Measuring range(s): 0 ... 100 % rH / -40 ... +80 °C, output: RS-485 Modbus

Measuring range(s): 0 ... 100 % rH / -40 ... +80 °C, output: RS-485 Modbus, extra code: with integrated display

Article number: 802102

GTIN: 4068823016666

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Product information "JUMO hydroTRANS S20 "

Combined transmitter for humidity and temperature measurement from the JUMO brand, hydroTRANS S20 variant

JUMO hydroTRANS S20 – Humidity and temperature transmitter (wall mounting) Type: 907042/11-0-15-009/000

This version of the hydroTRANS from JUMO is a wall-mounted humidity and temperature transmitter for monitoring indoor air quality. With a configurable output signal and robust multisensor system, it is suitable for air conditioning, ventilation, and building technology as well as storage and monitoring applications.

The JUMO hydroTRANS S20 is therefore a combined transmitter for measuring relative humidity and temperature in indoor areas as well as protected outdoor environments. It is suitable for the continuous monitoring of indoor air quality in technical systems, buildings, and storage environments.

Technical data

Basic type extension: RH-T
Version: Standard
Measuring range: 0 … 100 % RH / -40 … +80 °C
Measured parameters: relative humidity, temperature
Output: 4–20 mA / 0–10 V (combined output configurable)

Advantages and technical features of the JUMO hydroTRANS S20

Combined measurement of humidity and temperature in one device
Wide measuring range up to 100 % RH and -40 to +80 °C
Flexible combined output (4–20 mA or 0–10 V configurable)
Easy wall mounting for quick installation
Suitable for indoor areas and protected outdoor environments
Robust design for continuous indoor air quality monitoring

The measuring range covers 0 to 100 % relative humidity as well as temperatures from -40 to +80 °C. The measured values can be output via a configurable combined output (4–20 mA or 0–10 V), allowing flexible adaptation to different control and regulation concepts.

This wall-mounted version is designed for easy installation and enables direct mounting on walls or in climate-relevant areas. This makes the device particularly suitable for applications where quick integration without complex installation steps is required.

The multisensor technology enables simultaneous acquisition of humidity and temperature values. Optionally, the transmitter can be equipped with a plastic sinter filter that additionally protects the sensor from dust and particles, thereby supporting the stability of the measured values.

Typical areas of application

Climate monitoring in buildings
Ventilation and air conditioning systems
Building management systems
Storage rooms and archives

Dimensions

Height	7 cm
Length	19 cm
Width	12 cm

Weight

Weight	0,3 kg

Other attributes

Ausgang	4...20 mA / 0...10 V (Kombiausgang konfiguriert)
Customs tariff number	90258040
Messbereich (Temperatur & relative Feuchte)	0...100% rF / -40°C...+80°C
Messparameter	Relative Feuchte, Temperatur

Downloads:

Technical Specifications for the JUMO hydroTRANS S20 Humidity and Temperature Transmitter with Optional CO2 Module (Wall-Mounted Version)

Technical data:

Electrical safety
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

Electrical specifications – device with analogue output
electrical connection
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)
connection elements	spring-loaded terminal
connecting cable	cross-sectional area of the cable: AWG 28 to AWG 14 without ferrule: 0,2 bis 1,5 mm² with ferrule: 0,25 bis 1,5 mm²
stripping length	without ferrule: 8 mm with ferrule: 10 mm
temperature resistance	≥ 80 °C

Electrical data – device with RS485
electrical connection
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)
connection elements	spring-cage terminal
connecting cable	cable cross-section: AWG 28 to AWG 14 without ferrule: 0,2 to 1,5 mm² with ferrule: 0,25 to 1,5 mm²
stripping length	without ferrule: 8 mm with ferrule: 10 mm
temperature resistance	≥ 80 °C

Electrical data – device with SPE
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

Inputs – measured values – relative humidity
property	value
measuring range	Standard: 0 to 100 % RH with CO₂ module: 0 to 95 % RH
measurement accuracy	typical: ±2,0 % RH max.: ±2,5 % RH
sampling rate	1 s

Inputs – temperature
Propertyt	Value
measuring range	Standard: -40 to +80 °C with CO₂ module: -10 to +60 °C
measurement accuracy	Typical: ±0,2 °C Maximum: ±0,4 °C
sampling rate	1 s

Inputs – carbon dioxide (CO₂)
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

Outputs – device with analogue output (current output signal)
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

Outputs – voltage output
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

Interfaces – USB
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

Interfaces – RS485
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	8-1-none^a 8-1-odd 8-1-just 8-2-none a = factory setting
data transmission rate	9600 Baud 19200 Baud 38400 Baud (factory setting) 57600 Baud 115200 Baud
minimum response time	0 to 500 ms
device address	1 to 254

Interfaces – SPE
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

display
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)

environmental influences
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 B^a
EMC – Immunity	Industrial requirements
vibration^b	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
Shock^b	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.

Mechanical properties
property	specification
Materials of housing / display cover	PC / PMMA
Weight	Approx. 200 g