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Canopy Slingshot Speed Checker Initial Speed Checker Bow & Bow Speed Checker Enhanced Version Stores 80 Sets of Data Speed Measuring Instrument Accurate Sky-Dome
The main use of this product is: object acceleration speed measurement and other science and education experiments. Operating voltage:DC6V(4 AA batteries batteries not included) Test range:1-2000MPS(5-6500FPS) Testing Error:Less than 1%....
$150.00 Free Delivery
