Moisture transmitter testo 6621 A3-C01

testo 6621 – wall moisture transmitter with external sensor

Wall-mounted humidity transmitter with external sensor and display

  • External sensor - benefit of faster response time and easier calibration
  • Measuring range of moisture: 0...100%.
  • Measuring range temperature: 0... +60°C

Delivery time: 5-10 working days

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Delivery time: 5-10 working days

SKU: 6621 A3 C01 Categories: , , , ,

testo 6621 – wall-mounted moisture transmitter with display and external sensor

The testo 6621 is a compact moisture transmitter series with a stylish design and a wide range of options. The high-accuracy and long-term stable moisture sensor is the heart of Testo’s 6621 transmitter series, which can be adapted to most applications due to its wide range of options. As an option, the user-friendly software P2A is available, which allows the adjustment of the transmitters, parameterization of units and scale, provides history of all events, etc.

Available in designs:

  • For wall mounting with internal or external sensor and for duct mounting
  • With or without display
  • Optional output signals 4-20 mA, 0-1 V, 0-5 V, 0-10 V
  • Optional types of filters – Teflon, metal sinter, mesh, etc.

Contact us for prices and more information

Enclosure MaterialABS
Measure81x81x26mm
Protection classIP65
Operating temperatureElectronics (instrument housing) -20...+70°C

Display: ±0...+50°C
Screw connection1xM16x1.5
Moisture sensorTesto moisture sensor
Temperature sensorNTC sensor
Measurement rangeHumidity: 0...100 %RH

Temperature: ±0...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:4...20 mA (2-wire technology) two separate outputs

0...1V (4-wire technology) two separate outputs

0...5V (4-wire technology) two separate outputs

0...10V (4-wire technology) two separate outputs
Power supplyWith analog output: 24VDC ±10%

With volt output: 20...30VDC
EMCIn accordance with Directive 89/336 EEC
Sensor insertion length:220mm
There are no probes for this item.
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Datablad testo 6621
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Moisture transmitter testo 6621 A01-C01

testo 6621 – wall-mounted moisture transmitter with display

Wall-mounted humidity transmitter with display

  • Testo's highly accurate and long-term stable moisture sensor
  • Measuring range moisture: 0...100%.
  • Measuring range temperature: 0... +60°C

Read more