Lutron AM-4221 is a CUP Anemometer for high reliability of correct measurment.
Out side air speed measurement.
0.9 to 35.0 m/s, ft/min., km/h, mile/h, knots.
Temperature : 0 to 50 °C, °C/°F.
All in one, hand held type.
Cup type probe, high reliability.
LCD display, Record (max., min.).
IP-65 Water resistance, heavy duty.
DC 1.5V battery (UM-4, AAA) x 4.
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