Hot Wire Anemometer - GM8903

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• Measurement items: Air velocity, Air temperature, Air Quantity
• Air velocity measurement range: 0~30m/s
• Air temperature measurement range: 0~45°C, 32~113°F (± 2°C)
• Air quantity measurement range: 0-999900 m3/min
• Power supply : AAA 1.5V Alkaline battery *4
• Low battery indicating: 4V±0.2V
• Stand by current 0uA
• Operating Current ≤60mA

Model Number: GM8903
Data Sheet:

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Product Specification

GM8903 Hot Wire Anemometer Features
• Measurement of wind velocity, temperature and flow
• Unit conversion of wind velocity, temperature and flow
• Measurement of maximum and minimum wind velocity
• Measurement of 2/3 Vmax and average wind flow
• Data holding, storing and deleting function
• Low battery indicating function
• Auto power off function (power off automatically if no further operation for 10 minutes )
• Memory of 350 records
• Backlight
• Connecting to PC with USB cable
• Audio key pressing alert
• Large LCD display

GM8903 Hot Wire Anemometer Specification
1. Wind Velocity Range:

Unit	Wind Velocity	Resolution	Lowest Point of start value	Accouracy
m/s	0.0-30.0	0.001	0.3	±3%±0.1
Ft/min	0.0-5860	0.01/0.1/1	60	±3%±20
Knots	0.0-55.0	0.01/0.01	0.6	±3%±0.2
Km/h	0.0-90.0	0.001	1.0	±3%±0.4
Mph	0.0-65	0.001/0.01	0.7	±3%±0.2

2. Wind flow range:
CMM: 0-999900 m³/min
CFM: 0-999900 ft³/min

Unit	Range	Resolution	Area
CFM(FT³/MIN	0-999900	0.001-100	0.001-9999
CMM(M³/MIN)	0-999900	0.001-100	0.001-9999

3. Unit Conversatin:

	m/s	Ft/min	Knots	Km/h	Mph
1m/s	1	196.87	1.944	3.60	2.24
1ft/min	0.00508	1	0.00987	0.01829	0.01138
1knots	0.5144	101.27	1	1.8519	1.1523
1km/h	0.2778	54.69	0.54	1	0.6222
1mph	0.4464	87.89	0.8679	1.6071	1

4. Air Temperature Range:
Wind Temperature

Unit	Scale	Resolution	Accuracy
℃	0.0-45.0	0.1	±1.0℃
℉	32.0-113.0	0.1	±1.8℉

5. Operation Conditions:

	Temperature	Humidity
Host	0-50℃ (32℉~122℉)	≤80% RH
Sensor	0-60℃ (32℉~140℉)	≤80% RH

6. Storage Conditions:

Temperature	-40℃~60℃ (-40℉~140℉)
Humidity	≤80%RH

7. Power supply : AAA 1.5V Alkaline battery *4
8. Low battery indicating: 4V±0.2V
9. Stand by current 0uA
10. Operating Current ≤60mA
11. Battery use life: 20H (Continuous Use)
12. Dimensions:
Meter: 77x36x164mm
Probe: 30.5x30.5x305mm
30.5x30.5x1000mm(Elongated)
13. Net Weight: 330g (Not Included Battery)