HD2903T… - HD29V3T… series Air speed transmitters
HD2937T… - HD29V37T… series Temperature, Air speed transmitters
HD29371T… - HD29V371T… series Temperature, Relative Humidity and Air speed transmitters
The HD29 series of transmitters… are used for controlling air speed for conditioning and ventilation applications
(HVAC/BEMS) in the following sectors: pharmacy, museums, clean rooms, ventilation ducts, crowded places, canteens, auditoria, gyms or high-density farms, as well as industrial and civil sectors.
The sensors in combination with an accurate electronics guarantee precise and reliable measurements in the course of time.
The thin fi lm sensor for air speed, the AISI304 probe sheath, the 20μ metal grid filter for Relative Humidity enable their usage even for hostile applications.
The probes are available in three different lengths.

There are two possible installations:
in the TO version, the horizontal probe is joined
to the electronics enclosure while in the
TC version the probe is connected to the
electronics through a cable.

In the TO version, the duct probe is fixed to the
electronics enclosure and it is available in three
different lengths.

To fix the probe to the duct, you can use, for example,
the HD9008.31 flange, a 3/8” universal biconical connection or a PG16 metal cable gland (Ø10…14mm).
In the TC version, the probe together with the sensors is equipped with a cable which can be 2, 5 or 10 meters long.