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Beha-Amprobe TMA-21HW Hot Wire Anemometer

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Measure indoor air quality on heating, ventilation, air conditioning and refrigeration in residential, commercial and industrial environments with this hot wire anemometer from Beha-Amprobe.

The TMA-21HW consists of two parts. The first is a handheld meter which displays results, while the second is a telescopic, extendable hotwire sensor which attaches to the meter via a flexible cable (2.2m in length). As the probe is telescopic, it can be extended up to a maximum height of 1.2m to reach difficult areas.

This anemometer can be used to measure air flow volume in CFM and CMM and measures air velocity in selectable measurement units of metres/second, feet/minute, knots, kilometers/hour and miles per hour. The probe can be also used to calculate relative humidity and temperature measurements to ensure that the system you're testing is efficient and working exactly as it should.

Additional features of this meter include data hold, built-in memory storage for up to 99 records and a large, backlit LCD screen for use in poor lighting conditions.

Beha-Amprobe TMA-21HW Hot Wire Anemometer Key Features

  • Measure air velocity, temperature and relative humidity
  • Calculate volumetric flow rate, dew point temperature, wet bulb temperature, wind chill temperature, humidex temperature and heat index temperature
  • Telescopic measurement probe attached to meter by flexible cable
  • Instant, Average, 2/3 Vmax flow measurements
  • Measure velocity in selectable units: m/s, ft/min, knots, km/hr and mph
  • Data hold function temporarily stores current value shown on the screen
  • MAX/MIN mode with time stamping
  • Data storage for up to 99 records
  • Large, backlit LCD display
  • USB interface

What's Included?

  • Beha-Amprobe TMA-21HW Hot Wire Anemometer
  • User Manual
  • Batteries
  • Hard Carrying Case
  • USB Cable
  • CD Software
Part Code3730239

Beha-Amprobe TMA-21HW Technical Specifications

Display Triple display, 4 digit LCD reading
Sampling Rate Once per second
Response Time <2 seconds
Manual Memory Capacity 5 x 99 sets. (direct reading from LCD display)
Operating Conditions 0°C ~ 40°C (32°F ~ 104°F) 10 ~ 80% R.H.
Power Source 6 x AAA batteries
Battery Life Approx 10 hours
Dimensions 360.7 X 216 X63.5mm ( L14.2 X W8.5 X H2.5 in) with case
Weight 1043g ( 2.3 Lbs) with case
Probe Dimensions/Weight Wire length : 2.2 meter (7.2 ft)
Probe length : 1.2 meter (3.9 ft)
Probe diameter of tip : 15.0 mm (0.59 in.)
Probe diameter of base : 28.0 mm (1.1 in.)
Probe weight : 165 g (0.36 lbs)
Air Flow 0.1 to 30.0 m/s, 0.2 to 110 km/hr, 10 to 6000 ft/min, 0.1 to 59 knots, 0.12 to 68 MPH
Accuracy: ±3% of reading, ±1%FS
Air Flow Volume 0 to 999,990 CFM
0 to 999,900 CMM
Temperature -20°C to +60°C, ±0.5°C / -4°F to +140°F, ±0.9°F
Humidity 0 to 100%RH ±3%RH
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