Greystone AVDTMR100 Air Velocity Transmitter, Display, Relay, 100 mm Probe

Greystone AVDTMR100 Air Velocity Transmitter, Display, Relay, 100 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.