Sper scientific 850020, Instruction Manual

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Display ½” high digits, 4-digit LCD, display
updates every 0.5 seconds.
Sensor Air velocity sensor
NTC-type precision thermistor.
Operating
Altitude
7000’ (2000 meters) maximum
Operating
Environment
32-122°F (0°C - 50°C)
<80% RH
Storage
Environment
14 to 140°F (-10 to 60°C)
<80% RH
Low Battery will flash when battery voltage
drops below 7.2V. When battery
voltage drops below 6.5V the backlight
and will flash twice and the meter
will auto power off.
Dimension 8 x 2” x 1-½” (213 x 54 x 36 mm)
Weight 6 oz (172 g)
SPECIFICATIONS
Airspeed Range Resolution Accuracy
Airspeed m/s 1.10~25.00 m/s 0.01 m/s +/-(3%+0.30 m/s)
Airspeed km/h 4.0~90.0 km/h 0.1 km/h +/-(3%+1.0 km/h)
Airspeed ft/min 220~4920 ft/min 1 ft/min +/-(3%+40 ft/min)
Airspeed mph 2.5~56.0 mph 0.1 mph +/-(3%+0.4 mph)
Airspeed knots 2.2~48.0 knots 0.1 knots +/-(3%+0.4 knots)