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AVT Air Velocity and Temperature Transmitter

AVT Air Velocity and Temperature Transmitter

Quick Overview

The AVT is an all in one air velocity and temperature transmitter suitable for HVAC applications and can be used for measuring air velocity, temperature and air volume in ventilation systems. Air volume is calculated from the air velocity and the duct diameters. Each unit has options of display and relay outputs in addition to the standard dual analogue outputs of 0-10V and 4-20mA for velocity and temperature.
View Options



  • Monitoring air velocity and temperature in ducts
  • Monitoring air volume based on air velocity and duct diameter
  • Monitoring the proper use of air filters
    (proper air velocity = proper functioning of filters)


  • All measurement ranges in a single device
    (0...2 m/s, 0...10 m/s, 0...20 m/s)
  • Separate outputs for air velocity and temperature
  • Available with relay output
  • Easy to install on round and rectangular ducts


Power Supply:
24v DC/AC ± 10%
Suitable media: Air
Measuring Element: PT1000 and NTC10K

Analogue Output signals:

Output Signal 1

0-10V (linear to ºC), L min 1kW or
4-20mA (linear to ºC), L max 400W
Output Signal 2

0-10V (linear to m/s), L min 1kW or
4-20mA (linear to m/s), L max 400W
Relay Output signals:

Optional relay output

Potential free SPDT 250VAC, 6A / 30VDC,
6A with adjustable switching point and hysteresis
Velocity Range: Selectable by jumper 0-2, 0-10, or 0-20 M/S
Temperature Range: 0 to +50°C
Materials: ABS housing and stainless steel probe
Dimensions Housing: 90.0 x 71.5 x 36.0mm
Dimensions Probe:
Outer diameter 10mm, length 210mm from bottom of the cover
Adjustable Immersion length 50..180mm, with flange
Protection: IP54

Availability: Stock Item


Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

AVT, Air Velocity Transmitter with 2 outputs for flow velocity, range 0-2, 0-10 or 0-20M/S and air temperature range 0-50 C, with 10V or 4-20mA outputs. Power supply 24vDC/AC, ABS housing and stainless steel probe.
View FileDatasheet
   Size: (873.6 KB)
View FileManual
   Size: (1.3 MB)
or call us for a quote
AVT-D-R, Air Velocity Transmitter with display, 2 outputs for flow velocity range 0-2, 0-10 or 0-20M/S and air temperature 0-50 C with 0-10V or 4-20mA and two relay outputs with adjustable switch points. Power supply 24vDC/AC, ABS housing and stainless steel probe.
or call us for a quote