Testo 405 thermal anemometer velocity measuring stick

The Testo 405 velocity measuring stick is a compact, low priced thermal anemometer which can measure air velocity, volume flow and temperature. The 405, with it's telescopic handle (max extended length 300mm) compliments the latest 'pocket line' of instruments from Testo.

• Features:
  • m/s and m3/h (volume flow calculation 0 to 99,990 m3/h)
  • Duct holder and fixing clip for fast positioning
  • Auto Off function
  • Telescopic extendible probe, up to 300mm
  • Easy to read swivel head
  • Precision micro NTC (hot wire)
  • One quick twist and the velocity sensor is protected by the captive cap

• Velocity
  • Range: 0 to 10 m/s
  • Accuracy:
    • ±0.1 m/s + 5% of mv (0 to 2 m/s)
    • ±0.3 m/s + 5% of mv (remaining range)
  • Resolution: 0.01 m/s

• Temperature
  • Range: -20 to +50°C
  • Accuracy: ±0.5°C
  • Resolution: 0.1°C

• General
  • Operating temperature: 0 to 50°C
  • Dimensions: 490 x 37 x 36mm (including telescopic stick)
  • Weight: 115g
  • Battery: 3 x AAA