Range: Air Velocity: 98.4 to 3937 ft/min (0.5 to 20 m/s); Temperature: -4 to 140°F (-20 to 60°C); Humidity: 0.1 to 99.9% RH; Air Volume: 0 to 99,999 CFM or m3/s); Wet Bulb: -7.6 to 158°F (-22 to 70°C)
Accuracy: Air Velocity: ±3% of reading + 0.2 m/s; Temperature: ±1°F (0.6°C) from -4 to 122°F (-20 to 50°C), ±2.2°F (±1.2°C) from 122 to 140°F (50 to 60°C); Humidity: ±3% RH at 25°C (10 to 90% RH), ±5% RH (0.1 to 10% RH, 90 to 99.9% RH)
Resolution: Air Velocity: 0.1 m/s; Temperature: 0.1°F/0.1°C; Humidity: 0.1% RH; Air Volume: 0.1 (0 to 9999.9) or 1 (10,000 to 99,999); Wet Bulb: 0.1°F/0.1°C
Limits: Operating Temperature: 32 to 122°F (0 to 50°C); Storage Temperature: -4 to 122°F (-20 to 50°C); Operating Humidity: <80% RH; Storage Humidity: <90% RH
Power Requirements: (4) AAA 1.5 V alkaline batteries, included, user replaceable