The environmental tester has a measuring range of up to 0 … 30 m/s. In addition to the velocity, the environmental tester can precisely measure the volume flow and temperature. The compact design of the sensors, in combination with the extendable telescopic probe, enable measurements to be taken even in places that are particularly difficult to access.

• Speed: 0.00 … 30.00 m/s / 0.00 … 98.42 ft/s
• Volume flow: 0.0 … 339120.0 m3/h
• Temperature: 0 … 50 °C / 32 … 122 °F
• Telescopic probe length: 210 … 426 mm / 8.2 … 16.7"
• Telescopic probe diameter: 12 mm / 0.47"

PCE-VA 20 is a environmental tester for testing heating, ventilation and air conditioning or cooling (HVAC) systems. This environmental tester features a 10 cm / 3.9" Ø fan impeller, easy-to-read backlit LCD, and functions such as display hold, average value, maximum value, minimum value, battery-saving automatic power off, low-battery indicator, and metric or imperial unit selection.

• Measures air flow velocity, volume flow, relative humidity, air temperature, dew  point temperature and wet-bulb temperature
• Air flow velocity range: 0.2 … 30 m/s (39.4 … 5905.5 fpm)
• Accuracy: ±(1.5% of measured value + 0.3 m/s) when less than 20 m/s, ±(3% of  measured value + 0.3 m/s) when more than 20 m/s
• Resolution: 0.1