P3110E Relative Humidity and Temperature Transmitter with 4-20mA Outputs (-30 to +80°C) (0 to 100% RH)


Comet System


The transmitter P3110E with 4-20 mA outputs is designed to measure air temperature and relative humidity in chemically non-aggressive environments.

119,00 €

Add to wishlist

The Sensor measures: Temp./Rel. Humidity
Output Signal: 4-20 mA
Power Supply: Ac/dc Adapter 230V-50Hz inc.

Relative humidity and temperature transmitter is equipped with temperature and relative humidity sensors. Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals and sensors in a filter with stainless steel mesh. Humidity transmitters is equipped with two galvanic isolated 4-20mA outputs. 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.

APPLICATIONS - measuring and control of air humidity at:

  • building HVAC management
  • building HVAC automation
  • warehouses
  • glasshouses
  • manufacturers
  • museums, archives, galleries
  • air-conditioned rooms
  • weather stations

Outputs are set to maximum range from the manufacturer -30 to +80°C and 0 to 100%RH.

If different adjustment of outputs is required, please specify required output values RH and  T and required ranges in the order. Adjustment is free of charge.

Ordering example: Transmitter P3110E, output 1: RH 10 to 90%, output 2: temperature 0 to 35°C

 Application wiring of the humidity transmitter

Typical application wiring of dual output transmitter

Calculation of minimum power voltage Uss for proper operation:
Uss min> Uo min + Imax * Rz, 
where: Uo min= 9 V
Imax... approximately 20 mA
Rz... sensing resistor (shunt)
Both current loops (I1 and I2) are connected analogically, current loop I1 must be always connected.

Technical parameters




Measured Value

Relative Humidity + Temperature

Construction Type

Ambient Air



Temperature Measuring Range

-30 to +80°C

Relay Output


Two-State Input


Lcd Display




Relative humidity range

0 to 100%

Accuracy of relative humidity measurement

±3.0% relative humidity from 5 to 95% at 23°C

Accuracy of temperature output


Temperature operating range

-30 to +80°C

Range of humidity sensor temperature compensation

all temperature range

Current outputs - two-wire connection

4-20mA, galvanic isolated

Filtering ability of sensor cover

0.025mm - filter with stainless steel mesh

Protection of the case with electronics

IP65 electronics, IP40 sensors




89 x 170 x 40 mm (W x H x D), stem length 75 mm


approximately 150g


2 years

Multi-plate radiation shield:

code: F8000

Multi-plate radiation shield

Tool for easy connection to WAGO terminals 236 for analog output transmitters:

code: SP005

Tool for easy connection to WAGO terminals 236 for analog output transmitters

Plastic sensor protection with stainless filter (gray):

code: F5200

plastic sensor protection with stainless filter (gray)

PTFE sensor protection, white:

code: F5300

PTFE sensor protection, white

Sintered bronze sensor cover:

code: F0000

sintered bronze sensor cover

Vessel for adjustment and calibration of humidity:

code: MD046

Vessel for adjustment and calibration of humidity

Humidity Standard 10%RH, set 5pcs:

code: HM023

Humidity Standard 10%RH, set 5pcs

Humidity Standard 80%RH, set 5pcs:

code: HM024

Humidity Standard 80%RH, set 5pcs

30 other products in the same category: