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testo 6621

testo 6621 - Temperature and humidity transmitter

0555 6621

testo 6621 - Temperature and humidity transmitter

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.

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 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

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.