T3118 Temperature and Relative Humidity with 4 to 20 mA Output and Display

Temperature and relative humidity sensor T3118 are designated for indoor use.

For exacting interiors in building energy management and HVAC systems. Are designed for easy installation on ordinary KU68 wiring boxes for household switches and sockets.

Programmable temperature and humidity transmitter is equipped with temperature and relative humidity sensors. Measured values are also converted to other humidity interpretation - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy.

Degrees Celsius and Fahrenheit are user selectable. Transmitter contains a microprocessor-based control circuitry in a plastic case with connection terminals and sensors. Humidity transmitters is equipped with two galvanic isolated 4-20mA outputs. Configuration of outputs and output range are user adjustable.
Large dual line LCD for simultaneous display of T+RH or other humidity interpretation is an advantage. Display is possible to switch off. Computerized design ensures temperature compensation of the humidity sensor and fail indication. State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitters are designed for use in non-aggressive environment.

Included in delivery:
  • Traceable calibration certificate
  • Quick start manual
  • Free program TSensor for configuring of the transmitter


Sensor type T3118
Output 4 to 20 mA
Measured Value Temperature + Relative Humidity
Temperature Measuring Range -10 to 50 °C
LCD Display Yes
PoE No
Relative humidity range 5 to 95 % RH
Accuracy of relative humidity measurement ± 2.5 % relative humidity from 5 to 60 % at 23 °C
± 3.0 % relative humidity from 60 to 95 % at 23 °C
Accuracy of temperature output ± 0.5 °C
Available temperature units degrees Celsius, Fahrenheit
Accuracy and range of dew point temperature output - for more details see graphs ± 1.6 °C at ambient temperature T < 25 °C and RH > 30 %
range -60 to +80 °C
Accuracy and range of absolute humidity output ± 1.5 g/m3 at ambient temperature T < 25 °C
range 0 to 400 g/m3
Accuracy and range of specific humidity output ± 2 g/kg at ambient temperature T < 35 °C
range 0 to 550 g/kg
Accuracy and range of mixing ratio output ± 2.2 g/kg at ambient temperature T < 35 °C
range 0 to 995 g/kg
Accuracy and range of specific enthalpy output ± 3.5 kJ/kg at ambient temperature T < 25 °C
range: 0 to 995 kJ/kg
Current outputs - two-wire connection 4-20 mA, galvanic isolated
Configuration of outputs and output range user adjustable from the PC
Ingress protection IP 20
Power supply 9 to 30 VDC
Dimensions 88 x 106 x 33 mm (W x H x D)
Material of the case ABS
Colour white
Weight approximately 150 g

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

Dimensional Draft

Visit our downloads page to view technical characteristics or contact our technical sales department for more information, prices or with your specifications.

Also, you can reach us on +44 (0) 1865400514
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