1-unit does the work of an anemometer， thermometer， hygrometer and light level meter

1-handed operation

Low-friction ball bearing mounted wheel design provides high accuracy at high and low air velocity

K type thermocouple port for measuring surface temperatures

Airflow velocity range: 80 to 5910 ft./minutes (fpm)

Airflow velocity measurement accuracy: ±5% maximum

Ambient temperature measurement range: 32° to 122°F

Ambient temperature measurement accuracy: ±2.5°F

Relative humidity measurement range: 10 to 90%

RH measurement accuracy: ±4% of reading

Surface temperature measurement range (with K type thermocouple): -148° to 2372°F

Surface temperature measurement accuracy: ±1%

Choice of 2 airflow velocity units (fpm， mph， kmph， m/sec， knots)

Minimum/maximum memory + data hold

Single and multi-point averages

Switch °F/°C

Power source: (1) 9-Volt battery (not included)

Includes wrist strap and user's manual