Humidity Transmitter-Testo 6621

On-site adjustments are simple and precise thanks to the external interface!
Not only for in-house technicians or Facility Managers, but increasingly for responsible plant constructors as well: What additional expenditures do you expect to incur as a result of this humidity transmitter ?
Testo has some good news to share: The testo 650 or testo 400 reference instruments can be linked to the external interface using the adapter 0554 6022 – without having to open the transmitter. To configure the testo 6621 transmitter, only a few operating steps in the testo 400 or testo 650 menu are required. Conclusion: Time was saved and operating costs were reduced!

The testo 6621 transmitter is available in a wide range of configurations. The corresponding designs can be chosen depending on the application in a room or in a duct. Optional features include a display and an external probe. You can pick between grey and white housing colours. The testo 6621 is technically convincing because to its proprietary humidity sensors, which ensure the highest level of accuracy. The P2A software can be used to tune, evaluate, and parameterize the sensors and analogue outputs via the external interface.
The testo 6621 is a low-cost, high-performance transmitter. It satisfies the growing demands for precision, dependability, and safety in automated building services while also saving energy.

Long-term stability of a highly accurate testo humidity sensor (2.0 percent RH)
Optional 2-line LCD display – P2A software for parameterization, adjustment, and analysis reduces commissioning and maintenance time and costs Optimum calibration concept thanks to signal chain adjustment (1-point, 2-point and analogue adjustment)
2 analogue outputs (humidity/temperature), with the option of 1 passive humidity and temperature analogue output – Adjustment without disassembling the transmitter