Circuit

Custom LSI microprocessor circuit

Measurement units

Air Velocity: m/s, ft/min, km/h, MPH, knots;
Air Flow: CFM(ft3/min), CMM(m3/min);
Temp: deg F & deg C

Display

Display Type: LCD
Display Size: 42 X 54mm

Data hold

Freezes displayed reading

Sensors

Air velocity sensor: conventional angled vane arms with low-friction ball bearing.

Temperature sensor

NTC-type thermo resistance

Sampling rate

1 reading per second approx.

MAX/MIN Memory

Record and view Maximum and Minimum readings

Automatic Power off

Auto shut off after 20 minutes to save battery

Operating Temperature

32 deg F to 122 deg F (0 deg C to 50 deg C)

Operating Humidity

MAX. 80%RH

Power Supply

9V battery
Battery Life: 100 hours approx.

Power current

Approx. 2.5mA DC

Weight

1.0 lbs(0.49kg) including battery & probe

Dimentsions

Main instrument: 178 X 84 X 45mm
Sensor Head:70mm Diameter

Accessories:

Users manual ; 
Protective rubber holster;
Vane sensor with 3.9ft(120cm) cable.

Units

Range

Basic Accuracy

m/s

0.4 ~ 30.00

3%

Knots

0.8 ~ 58.0

3%

Km/hr

1.4 ~ 108.0

3%

Ft/min

80 ~ 5900

3%

MPH

0.9 ~ 67.0

3%

Air Flow (CFM: ft3/min)

0 ~ 999.900

Air Flow (CMM: m3/min)

0 ~ 999.900

Temperature deg C

-10 ~ 60.0

+/- 2 deg C

Temperature deg F

14 ~ 140.0

+/- 4 deg F