Description
TYPE 1 Overviews: This product is made of DIY the appearance requirementsHigh friends please take care! Effective induction area high sensitivity. Strong adaptability stable performance and high precision. The tachometer is mainly used for:Physical acceleration experiment projectile free fall experiment nerf toy speed measurement children s soft toys etc.. Tips: This is a small overall inappropriate test slingshot! The speed of the instrument is not very understanding of friends can look at the video. Screen addre: tudou.com/programs/view/Kf3HYdAfy9k/ Features: 12 sets of infrared sensor heads before and after to avoid leak detection Four-sided hollow design to prevent airflow interference Simultaneously record 40 sets of speed and kinetic energy data for easy viewing Large channel: 46*68mm Reference parameters Working voltage: DC3.7-4.2VAlready builtlithium battery) Working environment temperature: -30 ~ +60 Accuracy: test error≤1% Measuring range: 1-800 M /S Other: the four sides of the hollow design not only visual field but also to alleviate the impact of airflow measurement. Improved stability and accuracy of the test.To measure the velocity of the projectile propelled by the air preure please measure the distance from the machine 4-8 cm so that the air flow can be disturbed to get stable and accurate data Function: velocity measurement /Speed energy/ Look through records Package included: 1 x Speed Meter 1 x Tripod(Optional) 1 x USB Charging Cable TYPE 2 Mainly used for learning and experiencing the high-speed data proceing ability of single-chip microcmputer and measuring the flight speed of various things. Such as: table tennis badminton arrow and so on. Core components are industrial-grade encapsulation with stable performance and small error. Features: The panel is mainly composed of digital display tube function key and LED indicator. The function key is the micro touching button. Four sides of the air design to effectively ease the impact of testing time. Improved stability and accuracy. Display surface and the operation of the button in front of the operation and to see the test data are very convenient. Mini size is easy to carry. Simple and easy operation. High accuracy measurement. As the device with high accuracy and clamp rail and fixed equipment after the path every time are the same and with the guide rail can be made with the mining model in parallel so the measurement result error is small small fluctuation dynamic error. Function is more abundant. Not only can measure the speed but also can measure the kine-tic energy at the same time can record up to 40 groups of speed and the 40 group of the kine-tic energy value. Multiple power management and protection. The lithium cell has the function of over charging over discharging and short circuit protect and the integrated intelligent shutdown and low power shutdown function. Specifications: Working Voltage: DC4.2V Accuracy: test error le than or equal to 0.5% Measuring Range: 1-999m/s Cell(built-in): 1 * 3.7V 450mAh Lithium Cell Working Surrounding Temperature: -10°C – 60°C Speed Measurement Range: 1-999m/s Energy Measurement Range: 1-800J Weight Input Range 0.1-10g Speed Record: 40 group Kine-tic Energy Recording: 40 group Item Size: 130 * 80 * 50mm / 5.1 * 3.1 * 2.0in Package Size: 175 * 115 * 95mm / 6.9 * 4.5 * 3.7in Item Weight: 145g / 5.1ounce Package Weight: 240g / 8.5ounce Notes: Please allow 1-30mm error due to manual measurement. Due to the difference between different monitors the picture may not reflect the actual color of the item. Package List: 1 * Speed Measuring Instrument 1 * Manual null
