Benetech GM8902 Digital Air Flow Anemometer

Product Overview

The Benetech GM8902 is a professional digital anemometer designed for both industrial and home applications. It is used for measuring the speed and temperature of air, commonly applied to air-conditioners, CPU computer fans, and airflow over surfaces like roofs or walls.

This device measures wind flow in Cubic Meters per Minute (CMM) or Cubic Feet per Minute (CFM). It offers specialized measurements including 2/3 Vmax (maximum wind speed over two-thirds of the measurement period) and average wind flow. The anemometer can be connected via USB to a computer for real-time measurement monitoring or downloading recorded data.

Image Description: A Benetech GM8902 digital air flow anemometer. The device is handheld with a yellow protective casing and a black body featuring a digital display showing '38.8' and '32.6', along with control buttons labeled 'HEAD', 'REC', 'FLOW', 'ANEMOMETER', and 'MODE'. A separate vane with rotating blades is shown next to it.

Technical Functions

• Measurement Items: Air velocity, Air temperature, Air quantity.
• Velocity Units: Supports m/s, ft/min, knots, km/hr, mph.
• Temperature Selection: Switchable between °C and °F.
• Wind Flow Measurement: Includes 2/3 Vmax and average wind flow.
• Display: Backlight display for visibility.
• Readings: Max/Min readings and Average/Current readings for air velocity.
• Data Management: Data holding, Data record, and Data clear functions.
• Indications: Wind chill indication and low battery indication.
• Power Management: Manual/Auto power shut off after 10 minutes of inactivity.
• Storage: Internal memory for 500 records.
• Connectivity: USB cable connection for data transfer.
• Operating Conditions:
  • Temperature: 0°C to +50°C (32°F to 122°F)
  • Humidity: <= 80%RH
• Storage Conditions:
  • Temperature: -40°C to +60°C (-40°F to 140°F)
  • Humidity: <= 80%RH
• Dimensions:
  • Main unit: 77 x 36 x 164mm
  • Vane: 172 x 65 x 29mm
• Net Weight: 330g (excluding battery).
• Compliance: Compliant to CE/ROHS/FCC standards.

Specifications

Air Velocity Measurement (Units)

Wind Flow Range

• CFM (ft³/min): Range: 0 ~ 999,900; Resolution: 0.001 ~ 100; Area: 0.001~9999
• CMM (m³/min): Range: 0 ~ 999,900; Resolution: 0.001 ~ 100; Area: 0.001~9999

Temperature

• Celsius: Range: 0.0°C - +45.0°C; Resolution: 0.1; Accuracy: +/- 1.0°C
• Fahrenheit: Range: 32.0°F - 113.0°F; Resolution: 0.1; Accuracy: +/- 1.8°F

Package Includes

• 1 x Hand-held anemometer
• 1 x Vane
• 1 x Rubber protection pouch
• 1 x USB cable
• 1 x CD (Software for Windows XP/Win 7)
• 1 x Instruction Manual (English)
• 1 x Plastic suitcase
• 4 x AAA batteries

Image Description: The Benetech GM8902 anemometer package contents neatly arranged inside a black plastic carrying case. Items include the anemometer unit, the vane, a yellow rubber protective pouch, a USB cable, a CD, and batteries.

Software and Data Visualization

The anemometer supports real-time data display and download via a USB connection to a computer. The included software allows users to monitor measurements live and analyze historical data.

Image Description: Screenshot of the Benetech anemometer software displaying 'Real time measurement display on PC'. The interface shows a graph plotting air velocity and temperature over time, with numerical readings and data logging options.

Image Description: Screenshot of the Benetech anemometer software showing 'Download measurement data'. The interface displays a table of recorded data with columns for sequence number, date, time, air velocity, and temperature, alongside graph plotting and data export controls.