Hygrometer thermometer with Ethernet interface and relay *Step required

  • Temperature, humidity.
  • Two relay outputs.
  • Conversion to Humidex.
  • Three binary inputs.
Unit price
416,81 €
Final price
416,81 €
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Sensor with sensors for measure temperature and relative humidity on the cable and with two output relays. Conversion to Humidex.

The Humidex H3531 sensor is designed for online monitoring temperature, relative humidity, air humidity without aggressive substances.

Three binary inputs for two-state signal detection are the advantage.

The other devices are controlled by two relay outputs.

Le high precision capacitive polymer sensor provides excellent long-term calibration stability and ultimate accuracy.

Measured values ​​are also converted in other interpretations of humidity: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy.

The device is supplied with a T + RH probe with a 1 m cable.

Cable lengths 2 m or 4 m available as an option.

Processing and analysis of measured data

  • Online in Cloud
  • Database software
  • Integration into third-party systems 


  • AR004758
  • Manual
  • Traceable calibration certificate
  • Free Tsensor configuration software
  • Cloud for 3 months 


- Temperature
- Relative humidity
- Calculated values ​​(dew point, etc.)
- Two state signal

Relative humidity measurement range: 0 to 100%

Relative humidity measurement uncertainty: ± 2.5% RH from 5 to 95% at 23 ° C

Temperature measurement uncertainty: ± 0.4 ° C

Resolution: 0.1 ° C, 0.1% RH

Measuring interval: 2s

available units: degrees Celsius, Fahrenheit

Calculated values: Dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy

Uncertainty and dew point measurement range: ± 1.5 ° C at ambient temperature T <25 ° C and RH> 30%
range from -60 to + 80 ° C

Uncertainty and absolute humidity range: ± 1.5g / m3 at ambient temperature T <25 ° C
range from 0 to 400g / m3

Uncertainty and specific enthalpy range: ± 2g / kg at ambient temperature T <35 ° C
range 0 to 550g / kg

Uncertainty and range of the mixture ratio: ± 2g / kg at ambient temperature T <35 ° C
range 0 to 995g / kg

Uncertainty and specific enthalpy range: ± 3kJ / kg at ambient temperature T <25 ° C
range 0 to 995kJ / kg

Temperature compensation of the humidity sensor: all over the beach

Temperature operating range: -30 to + 80 ° C

IP protection index: IP40

Number of relay outputs: 2

Maximum switching voltage, current and relay output power: 50V, 2A, 60VA

Number of binary inputs: 3

Signal for binary inputs: Dry contact, open collector, or two-state voltage signal. 
The inputs are not galvanically isolated.

Minimum pulse duration at binary input: 500ms

low voltage at binary input: 0 to + 0.5V

high voltage at binary input: +3.0 to + 30V

Audible alarm: Integrated - dice connectable

LAN connection: RJ-45, 10Base-T or 100Base-TX connector

Communication protocols: WWW, Modbus TCP, SNMPv1, SOAP

Alarm protocols: E-mail 

Configuration: T-Sensor, Telnet, keyboard

LCD display temperature operating range: Readable at operating temperature + 70 ° C

Hood filtering capacity: 0,025 mm - filter with stainless steel mesh

Supply : 9 to 30 Vdc, maximum consumption 1W

Power cable : Coaxial, diameter 5,5 x 2,1 mm

Cable length: 1m, 2m or 4m optional

dimensions: 136 x 159 x 45 mm (W x H x D), probe length 88 mm, probe diameter 18 mm

Weight: about 410g - 1m of cable

Warranty: 3 years 



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