1-999m/s Speed Tester for Shooting Speed Meter Ball Velocity Energy Measurement Shooting Chronograph Bullet Speed Tester Note: There are 4 versions of the above HT-X3005 (no wifi) ;HT-X3006 (no wifi) is without WifI, HT-X3005 (with wifi) ;HT-X3006 (with wifi) is with WifI, please purchase according to your needs X3005 and X3006 accessories are slightly different Features: 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. Mini 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 line, charging time is about 1 hour then you can use more than 10 hours after full charging. The red light bright in the charging and the blue light bright in full charging. Built-in overshoot protect, overdischarge protect, short-circuit protect, etc. With holders and pinboard package. Without using the pinboard, the using pipe diameter range is 20-31mm, less than 20mm you can add the pinboard or tie on the pipe. Using the pinboard, the using pipe diameter range is 16-43mm, less than 16mm you can add the pinboard or tie on the pipe. Included three keys, first is switch key also is confirmation key, second is up key, third is down key. With Chinese and English switching function. You can change the language by your self, press the down switch after starting up, and find the language line and press the confirmation key. Using semipermeable half-reflecting LCD screen that you can see clearly in the darkness or in strong light. Technical parameters Name: HANTE Fierate: 0-3600 shoot/minute Velocity: 2-1500m/s(10-5000 fps) Energy: 0-999 J Range: 0-999 m Accuracy: error0.5% Weight input range: 0.01g-99.99g Caliber input range: 0.01mm-99.99mm Main dimensions: HT-X3005(44*73*33mm) HT-X3006(51*73*39mm) Protection tube diameter: HT-X3005(17mm) HT-X3006(24mm) Working environment temperature:-10+50 If you buy 'with WiFi Edition', you can view data through your mobile phone, computer, etc _x000D_