Testo-405-V1 Thermal Anemometer

The Testo 405 Thermal Anemometer is an essential tool for HVAC engineers and professionals performing fast, accurate measurements of air flow, volumetric flow, and temperature in ventilation systems or indoor spaces. Designed with a permanently mounted, extendable telescope and user-friendly features, the Testo 405 provides precise readings even at low air velocities, making it ideal for ventilation ducts and air quality monitoring.

Key Features:

• 3-in-1 Measurement:

  • Measures air velocity (0 to 10 m/s)
  • Calculates volumetric flow (up to 99,990 m³/h)
  • Monitors air temperature (-20 to +50 °C)

• Accurate at Low Velocities:

  • Delivers precise measurements between 0 and 2 m/s, perfect for checking indoor air quality and detecting drafts near windows.

• Extendable Telescope:

  • Telescope extends up to 300 mm, making it ideal for duct inspections.
  • Swiveling, illuminated display ensures easy reading of measurements from different angles.

• Duct Bracket Included:

  • Securely position the anemometer inside ventilation ducts for optimal measurement results.

• Sensor Protection:

  • Rotating protective cap safeguards the flow sensor from mechanical damage when not in use.

Specifications:

• Weight: 115 g (with batteries)
• Dimensions: 490 x 37 x 36 mm
• Operating Temperature: 0 to +50 °C
• Storage Temperature: -20 to +70 °C
• Display: LCD with illuminated, swiveling feature
• Probe Shaft Length: 300 mm
• Battery Life: Approx. 20 hours
• Battery Type: 3 AAA micro batteries

What’s Included:

• Testo 405 Thermal Anemometer
• Duct Bracket for secure placement
• 3 AAA Batteries (pre-installed)
• User Manual for quick setup