testo 6621 - Temperature and humidity transmitter

Obj.č.   0555 6621

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  • Transmitter with 2 analog outputs (temperature/humidity)

  • High-precision Testo humidity sensor with long-term stability

  • Optional 2-line LCD display

  • P2A software for parameterization, adjustment and analysis

The high-performance measurement transmitter testo 6621 is a reliable partner for applications in building air conditioning. Accuracy, long-term stability and reliability – our measurement transmitter meets the high demands of building automation, helping you to reduce costs.


Popis produktu

The measurement transmitter testo 6621 stands out thanks to its patented humidity sensor which guarantees highest accuracy. Particularly practical: The sensor and the analog outputs can be adjusted, analyzed and parameterized via an external interface using the P2A software.

Select the suitable design according to your application in a room or a duct. The measurement transmitter testo 6621 is available in different product variations: optionally with or without display, in the housing colours grey or white.

Temperature and humidity measurement transmitter testo 6621 - features

  • 2 analog outputs (temperature/humidity), optionally 1 analog output humidity and temperature passive
  • Highly accurate and long-term stable Testo humidity sensor
  • P2A software for parameterization, adjustment and analysis saves time and costs in commissioning
  • Optimum calibration concept by adjustment of the entire signal chain (1-point, 2-point and analog adjustment)
  • 2-line LCD display optional

Rozsah dodávky

testo 6621 temperature and humidity transmitter as a wall or duct version, with selectable signal outputs, 2-line display (optional), external interface for adjustment and commissioning.



P2A PC software

Obj.č.: 0554 6020

vč. DPH  184,56€
Plastic protection cap

Obj.č.: 0192 0265

vč. DPH  110,16€
vč. DPH  44,40€
Wall bracket / duct bracket

Obj.č.: 0554 6651

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