
The Air Flow Meter 45158 is a waterproof, pocket-sized thermo-anemometer that measures air velocity, temperature, and wind chill. On the LCD panel, air velocity, temperature, and wind chill are all displayed simultaneously. It has adjustable average intervals of 5, 10, or 13 seconds, as well as data hold and auto power off options. The foldable, protected casing extends to 229 mm (9 in) for increased reach. The 45158 is tripod mountable and has a battery and 109.2 cm (43 in) lanyard.
Air Velocity (ft/min) | 216 to 3936 ft/min |
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Air Velocity (ft/min) Basic Accuracy | ±(3% of reading + 40 ft/min) |
Air Velocity (ft/min) Max Resolution | 20 ft/min |
Air Velocity (km/h) | 4.0 to 72.0 km/h |
Air Velocity (km/h) Basic Accuracy | ±(3% of reading + 1.4 km/h) |
Air Velocity (km/h) Max Resolution | 0.7 km/h |
Air Velocity (knots) | 2.1 to 38.9 knots |
Air Velocity (knots) Basic Accuracy | ±(3% of reading + 0.6 knots) |
Air Velocity (knots) Max Resolution | 0.3 knots |
Air Velocity (m/s) | 1.1 to 20 m/s |
Air Velocity (m/s) Basic Accuracy | ±(3% of reading + 0.2 m/s) |
Air Velocity (m/s) Max Resolution | 0.1 m/s |
Air Velocity (mph) | 2.5 to 44.7 mph |
Air Velocity (mph) Basic Accuracy | ±(3% of reading + 0.4 mph) |
Air Velocity (mph) Max Resolution | 0.2 mph |
Beaufort Wind Force | 1 to 8 BF |
Beaufort Wind Force Basic Accuracy | ±1 BF |
Beaufort Wind Force Max Resolution | 1 BF |
Dew Point | 32 °F to 122 °F (0 to 50 °C) |
Dew Point Basic Accuracy | ±3.6 °F/ ±2 °C |
Dew Point Max Resolution | 0.1 °F/ °C |
Relative Humidity | 10% to 95% |
Relative Humidity Basic Accuracy | ±5% |
Relative Humidity Max Resolution | 1% |
Temperature (Air) | 0 to 122 °F (-18 to 50 °C) |
Temperature (Air) Basic Accuracy | ±1.8 °F/ ±1 °C |
Temperature (Air) Max Resolution | 0.1 °F/ °C |
Certifications | CE |
Dimensions | 5.25 × 2.75 × 0.75" (133 × 70 × 19mm) |
Display | Segment LCD |
Power | 1 × CR2032 (3V) battery |
Vane | 1" (24mm) diameter |
Warranty | 2 years |
Weight | 3oz (95g) |