 Small enough to fit in almost any pocket, pack, or purse, the QM1640 Hand Held Anemometer displays current, maximum, and average wind speeds plus the temperature and wind chill. Wind speeds can be digitally displayed in any of 4 different measurement units. Also displayed is a Beaufort wind scale bar graph whose reading corresponds to the digital wind speed display.
In the wind speed mode, the QM1640 can display the current wind speed, the maximum wind speed since power-on, and the average wind speed since power-on. During setup, you can select a period of 2 to 10 seconds over which wind speed is averaged for the current wind speed reading. Also during setup, you can select km/h (kilometers per hour), mph (miles per hour), m/s (meters per second), or Kts (knots) as the digital wind speed indication.
The Beaufort wind scale bar graph is continuously displayed in both the wind speed and temperature modes and reads from 0 (Calm) to 12 (Hurricane). For each numeric wind force indication, a handy table in the instruction manual gives the description (such as Fresh Breeze or Strong Gale) and the corresponding wind speed in all 4 displayable measuring units.
In the temperature mode, the QM1640 can display the current temperature or current wind chill. During setup, you can select either °F or °C for these readings.
One particularly nice feature of this pocket anemometer is the condensed set of instructions printed on the back of the instrument. Another is the LCD panel backlight with 8-second auto-off. Still another is the included detachable lanyard so you can wear the QM1640 around your neck if you wish.
Although the QM1640's case is weather-resistant, this instrument is not submersible.
The QM1640 is powered by one CR2032 (3V) lithium battery, which is included and preinstalled. To maximize battery life, the anemometer automatically turns itself off after 34 minutes if no button is pressed during that time. For reliability, the manufacturer recommends that you replace the battery annually.
Please note that anemometers of this type are sensitive to magnetic fields. These instruments work by picking up magnetic impulses transmitted by the spinning impeller blades, processing them into logic pulses, and supplying them in binary form to the LCD panel. This means that the instrument may display numeric values when in a magnetic field (from a computer, electric appliance, etc.). However, this will not affect operation under normal circumstances. Handheld Anemometer Features:- Wind speed is displayed in mph, km/h, m/s, or knots.
- Wind speed is also displayed in a Beaufort wind scale bar graph.
- Display options in wind speed mode are current wind speed, maximum wind speed since power-on, and average wind speed since power-on.
- Display options in temperature mode are current temperature and current wind chill.
- Temperature indication is selectable for either °F or °C.
- Wind chill is displayed in the selected temperature unit.
- Wind speed, temperature, and wind chill are displayed in digits approximately 3/8 inch tall (except for tenths, which are about 1/4 inch tall).
- For night viewing, LCD panel has a backlight with 8-second auto-off.
- Case is weather resistant (but not submersible).
- A detachable neck lanyard is included.
- Instrument is powered by one CR2032 (3V) lithium battery, which is included and preinstalled.
- To conserve battery life, automatic power-off occurs after 34 minutes if no button is pushed during that time.
Handheld Anemometer Specifications:- Temperature measuring/operating range:
-21.8° to +138.2°F with 0.2°F resolution
(-29.9° to +59°C with 0.1°C resolution) - Temperature checking interval: every 10 seconds
- Wind speed measuring range:
- Minimum: 0.4 mph (0.2 m/s)
- Maximum: 67 mph (30 m/s)
- Power source: one CR2032 (3V) lithium cell
- Battery life: approximately 12 months
Handheld Anemometer Dimensions:- 1.5 inches (39 mm) wide
- 3.8 inches (98 mm) high
- 0.6 inch (17 mm) thick
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