Greystone AVDTMR Air Velocity Transmitter, Display, Relay, 200 mm Probe

Greystone AVDTMR Air Velocity Transmitter, Display, Relay, 200 mm Probe. The Greystone AVDT Duct Air Velocity Transmitters are designed with duct mount probe and adjustable collar suitable for round or rectangular ducts, providing separate readings for air velocity and temperature.