Mini Speed Measuring Instrument Stable Initial Speed Meter High Accuracy Speed Tester ( #: Y22764 )

Features:
High accuracy provides small measurement result error and fluctuation dynamic error.
Simultaneously record 40 sets of speed and kinetic energy data.
Four-sided hollow design to prevent airflow interference.
Built-in 350mAh lithium battery,easy to recharge with the provided USB charging cable.
2 kinds of clamp to fix the pipe diameter of 16-37mm/0.6-1.5in.
Mini size is not suitable for slingshot and archery testing,there is a risk of hitting the speedometer.
Front display screen to view the test data easily.
Multiple power management and protection for safe using.
Convenient carry and simple to operate.

Specification:
Working Voltage: DC4.2V
Accuracy: test error less than or equal to 1%
Measuring Ranges: 1-999m/s
Battery: 1* built-in 3.7V 350mAh lithium battery
Speed Measurement Ranges: 1-999m/s
Energy Measurement Ranges: 1-800J
Weight Input Ranges: 0.1-10g
Speed Record: 40 group
Kinetic Energy Record: 40 group
Working Surrounding Temperature: -10℃ - 60℃
Size: 130 * 50 * 75 mm / 5.1 * 2.0 * 3.0 in
Package Size: 175 * 115 * 95 mm / 6.9 * 4.5 * 3.7 in
Package Weight: approx. 280 g / 8.5 oz

Packaeg List:
1* Speed Measuring Instrument
1* USB Cable
1* U Clamp
1* Wrench
1* Manual