GC-866BWM Digital Anemometer Handheld Wind Speed Meter

Product Usage Instructions

Functionality

The Anemometer has the following functions:

1. Wind speed measurement
2. Barometer indicator
3. Temperature/humidity/dew point/wind chill indication
4. Altitude measurement
5. Measure wind speed in: Current/Max/Min/Average
6. Low battery warning
7. LCD back-light
8. Auto / Manual power off (Note: It will not auto power off in the interface of barometer indication)

Operation

1. Open the battery compartment and insert the battery.
2. Screw down the battery cover and press the power button for 1 second to turn on the unit. The LCD will display wind speed, temperature, and battery icon.
3. To power off, press the power button again.
4. Press the selection button (<button>) to select different wind speed units.

Altitude and Atmospheric Pressure Conversion Table

Altitude (m)	Atmospheric Pressure (kPa)	Altitude (in)	Atmospheric Pressure (inHg)
0	101.3	0	0.029
8000	11.24	314961	0.003

FAQ

• Q: What is the weight of the Anemometer?
  • A: The weight of the Anemometer, including the battery, is 153g.
• Q: What is the operating temperature range?
  • A: The operating temperature range is -10~45°C (14~113°F).
• Q: What is the resolution for wind speed in M/s?
  • A: The resolution for wind speed in M/s is 0.1.

Function

1. Wind speed measurement
2. Barometer indicator
3. Temperature/humidity/dew point/wind chill indication
4. Altitude measurement
5. Measure wind speed in: Current/Max/Min/Average
6. Low battery warning
7. LCD back-light
8. Auto / Manual power off (Note: It will not auto power off in the interface of barometer indication)

Operation

1. Put battery into battery compartment.
2. Recover battery cover, screw down press“①”in 1 second to turn on the unit. LCD will display wind speed, temperature and battery icon. Press again, it will power off.
3. Press “ ② ” to select different wind speed unit:
   • Press “②”each time, it will circulated among “m/s”, “Km/h ”, “Ft/min”, “Knots”,and “MPH” .
   • Digit symbol:
     • m/s: meter per second; Km/h: kilometer per hour;
     • Ft/min: feet per minute; Knots: nautical mile per hour;
     • MPH: mile per hour.
4. Press “ ③ ” to select different barometric pressure unit: Press “ ③ ”each time, it will circulated between “inHg” and “hpa mbar”. Press and hold“③” for above 3 seconds, it will enter to the reading of barometric pressure mode. There are total 16 groups data, and record the barometric pressure 1 times per hour. Now you press it, you can check the 16 groups data. Press and hold “ ③ ” again, it will exit to the reading of barometric pressure mode.
   • Digit symbol:
     • inHg: inches of mercury
     • hpa mbar: millibars / hectopascals.
     • 1(inHg) =33.8638816(hpa)
5. Press“④ ” to select altitude unit, press”④ ” each time, it will circulated between “M” and “FT”.
   • Note: As the altitude is the conversion from atmospheric pressure, in different periods, the uneven air density which is caused by climate will lead to different altitude.
   • Digit symbol:
     • M: meter; FT: feet.
     • 1(m)=3.2808399(ft)
   • Press and hold ”④ ”, it will go in to the mode of the barometric pressure calibration. You can calibrate according to the barometric pressure in your local. Press “②” to go up in units, press“⑤” to go down in units. After the adjustment is completed, press and hold”④” again, the data will be saved and it will exit to the calibration mode.
6. Press”⑤” each time, it will circulated among “℃”, “℉”, “RH%”, “DP-℃”, “DP-℉”, “WCL-℃” and “WCL-℉”.
   • Digit symbol:
     • ℃: Centigrade; ℉: Fahrenheit; RH%: Relative Humidity;
     • DP-℃: Dew point centigrade;
     • DP-℉: Dew point degree fahrenheit;
     • WCL-℃: wind chill centigrade;
     • WCL-℉: wind chill fahrenheit.
     • WCL: The wind chill index is a physical quantity that characterizes the relationship between the wind speed and the cooling.
     • DP: Displays the temperature at which air becomes saturated with moisture (the temperature at which fog will form)
7. Press “⑥” each time to select “MAX”, “AVG”, “MIN” of wind speed. Press and hold“ ⑥ ” for above 3 seconds, back light will turn on. Press and hold “ ⑥ ” for above 3 seconds again, it will turn off.

Specifications

Wind Speed Range
Unit		Range		Resolution		Accuracy
M/s		0.3~30		0.1		±5%
Ft/min		59~5905		19
Knots		1~55		0.2
Km/h		2~90		0.3
Mph		1~65		0.2
Temperature range
Unit	Range		Resolution		Accuracy
℃	-10℃~45℃		0.2		±2℃
℉	14℉~113℉		0.36		±3.6℉
Battery			AAA 1.5V×2
Thermometer			NTC thermometer
Operating			-10℃~45℃(14℉~113℉)
Relative humidity			≤90%RH
Store temperature			-20℃~60℃(-4℉~140℉)
Current consumption			About 3mA
Weight			153g(including battery)

Conversion Table

Altitude and Atmospheric Pressure conversion table

Altitude （m)	Atmospheric pressure（kpa)	Altitude（in）	Atmospheric pressure（inhg)
0	101.3	0	0.029
500	95.2	19685	0.028
1000	89.4	39370	0.026
1500	84	59055	0.024
2000	78.9	78740	0.023
2500	72.84	98425	0.021
3000	67.24	118110	0.019
3500	61.64	137795	0.018
4000	56.04	157480	0.016
4500	50.44	177165	0.014
5000	44.84	196850	0.013
5500	39.24	216535	0.011
6000	33.64	236220	0.009
6500	28.04	255906	0.008
7000	22.44	275591	0.006
7500	16.84	295276	0.004
8000	11.24	314961	0.003

Form quote from: http://www.bestconverter.org

In the natural environment, atmospheric pressure will be affected by various factors, such as changes in temperature, humidity, wind speed and altitude.

Above picture and content just for your reference. Please be subject to the actual products if anything different or updated. Please pardon for not informing in advance.

Documents / Resources

GC GC-866BWM Digital Anemometer Handheld Wind Speed Meter [pdf] Instruction Manual GC-866BWM Digital Anemometer Handheld Wind Speed Meter, GC-866BWM, Digital Anemometer Handheld Wind Speed Meter, Handheld Wind Speed Meter, Wind Speed Meter, Speed Meter

References

• User Manual