0 to 9,999 ft/min (0 to 50 m/s) 14 to 140°F (-10 to 60°C) 0 to 95% RH ±3% of reading or ±3 ft/min (±0.015 m/s), whichever is greater ±0.5°F (±0.3°C) ±3% RH 1 ft/min (0.01 m/s) 0.1°F (0.1°C) 0.1% RH Length 40 in. (101.6 cm) Tip dia. 0.28 in. (7.0 mm) Base dia. 0.51 in. (13.0 mm)