JDC electronic Flowatch Flowmeter with case

Accuracy: ±2% fluid speed; ±3% air velocity

Range: Fluid Speed, 0.2 to 40 mph (0.1 to 18 M/Sec)

Temperature, -58°F to 212°F (-50°C to 100°C)

Resolution: 0.3 km/h; 0.2 mph; 0.2 knots; 0.1 M/Sec

Temperature Modes: Minimum, maximum, current temp wind chill factor. Operating Modes: Current, maximum and average fluid speed.

Power: 2 AA Batteries (included)

Dimensions: Display, 5.25” x 2.25” x 2.5”;