HT-X3005 Speed Meter Measurement Chronograph Speed with Backlight LCD

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

How to Use: LCD backlight setting, you can set light or long out. When you set as automatic, the screen 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 in the charging and the light in full charging. -in overshoot , overdischarge , short- , etc. Without using the pinboard, the using diameter range is 20-31mm, less than 20mm you can the pinboard or tie on the . Using the pinboard, the using diameter range is 16-43mm, less than 16mm you can the pinboard or tie on the . Included , first is switch key also is confirmation key, second is up key, third is key. Using semipermeable half-reflecting LCD screen you can see clearly in the darkness or in strong light. Material:Metal + plastic colour:white Contents: 1 * Speed Measuring Instrument Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.