2X HT-X3005 Speed Meter Velocity Measurement Chronograph Speed Tester with Backlight LCD

2X HT-X3005 Speed Meter Velocity Measurement Chronograph Speed Tester with Backlight LCD Description

This product is mainly used for object acceleration and velocity measurement. Individual users can be used to measure the design speed of all kinds of shooting playthings.
size is easy to carry. Simple and easy operation.
Handheld type speed measuring instrument, with high accuracy measurement, 160 groups datas will be recording.
Measuring speed range: 1-999m/s.
Metal surface and fully closed, this speed measuring instrument will not affect by the sun and air current. High accuracy, with accurate measurement data. Humanized design unit conversion function.

How to Use:
LCD backlight setting, you can set constant light or long out. When you set as automatic, the screen will light out after 10 seconds without operation.
With automatic shutdown function.
Charging by using the USB , charging is about 1 hour then you can use more than 10 hours after full charging. The red light bright in the charging and the light bright in full charging.
Built-in overshoot protect, overdischarge protect, short-circuit protect, etc.
Without using the pinboard, the using pipe diameter range is 20-31mm, less than 20mm you can add the pinboard or tie the pipe. Using the pinboard, the using pipe diameter range is 16-43mm, less than 16mm you can add the pinboard or tie the pipe.
Included three keys, first is key also is confirmation key, second is key, third is down key.
Using semipermeable half-reflecting LCD screen that you can see clearly in the darkness or in strong light.
Material:Metal + plastic
colour:white

Package Contents:
2 x Speed Measuring Instrument