Moisture transmitter testo 6631

testo 6631 – moisture transmitter for greenhouse applications

Especially for monitoring critical environments in greenhouses

  • Testo's highly accurate and long-term stable moisture sensor
  • -10...60°C
  • 0...100%RH

Delivery time: 5-10 working days

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Delivery time: 5-10 working days

SKU: 0555 6631 Categories: , , , ,

testo 6631 – moisture transmitter for greenhouse applications

The testo 6631 humidity transmitter has been specially developed for monitoring critical environments in greenhouses, and for research purposes. Accurate and reliable moisture measurements are indispensable in these programs, to avoid costs caused by failed experiments. Process safety and system availability are among the most important factors in experimental facilities.

The main benefits

  • Testo’s highly accurate and long-term stable moisture sensor
  • Robust enclosure
  • -10…60°C
  • 0…100%RH
  • IP65
  • Configuration, adjustment and analysis via the PC program P2A (accessory).
  • Supply 20…30 V
  • 4 … 20 mA (2 or 4-wire)
  • Display (accessory)
  • Long-term stability and reliability thanks to the accuracy of the Testo humidity sensor
  • The integrated fan allows the directional flow impact on the sensor and helps to determine the average value in the greenhouse compartments.
  • Thanks to its practical design, it protects its electronics and sensors from variations in humidity (e.g. sprinklers, irrigation, etc.).

Contact us for prices and more information

EnclosureABS, White UV safe plastic with high resistance to chemicals
Size81x81x26mm
Protection classIP65
Operating temperatureElectronics (instrument housing) -20...+70°C

Display: ±0...+50°C
Screw connectionThe connection is made via terminal block at the top.
Moisture sensorTesto moisture sensor
Temperature sensorNTC sensor
Measurement rangeHumidity: 0...100 %RH

Temperature: -10...60°C
Adjustment points11,3%RH, 75,3%RH

and that the analog output can also be adjusted"
Accuracy :
Moisture±2.5 %RH (0...90%RH)

±4 %RH (90...100%RH)
temp0,5°C
Analog output:Temperature: 4 to 20 mA (2- or 4-wire)

Humidity: 4 to 20 mA (2- or 4-wire)
Power supplyWith analog output: 24VDC ±10%

With volt output: 20...30VDC
StandardsEMC DIN EN 61000-6-2 (Immunity) and DIN

EN 61000-6-3 (Emission)
Internal fanMax flow: 46.80 m³/h / 13 l/s

Fan lifetime: 37,500 h (40 °C)
There are no probes for this item.
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