The panel is mainly composed of digital display tubes, functions, buttons and LED indicators. The function keys are micro touch buttons.The four aspects of air design effectively alleviate the impact of test time. Improved stability and accuracy.The display surface and operation buttons are in front of the operation and it is very convenient to view the test data.The mini size is easy to carry. Easy to operate.High-precision measurement. Because of the high precision of the device and the fixture, the path is the same as the fixed equipment every time it passes.And it can be made in parallel with the guide rail and the mining model, so the error of the measurement result is small, and the dynamic error of the fluctuation is small.More functions. Not only can measure speed, but also kinetic energy, and can record up to 40 sets of speed and 40 sets of kinetic energy values ​​at the same time.Various power management and protection. Lithium batteries have over-charge, over-discharge and short-circuit protection functions, and integrate smart shutdown and low-power shutdown functions.specification:Working voltage: DC4.2VAccuracy: test error ≤0.5%Measuring range: 1-999m/sBattery (built-in): 1 * 3.7V 450mAh lithium batteryWorking environment temperature: -10℃-60℃Speed ​​measurement range: 1-999m/sEnergy measurement range: 1-800JWeight input range 0.1-10gSpeed ​​record: 40 groupsSports energy record: 40 groupsPacking: 1 * AnemometerPlease understand that due to differences in lighting or computer monitors, I cannot guarantee that the photos and actual colors are 100% the same.Due to different measurement methods, there may be a deviation of 1-2cm.2.Please allow 2-3% error due to manual measurement.Please make sure you don’t mind before you mid.