School Lab Pocket Smart Timer

School Lab Pocket Smart Timer

Pocket smart timer with built-in photo gate can  measure time, speed and acceleration . Microprocessor control  offered 0.01% accuracy.   2 AA battery for 2 hours continuously working . Large internal Memo up to 20 data points can be recorded Direct reading acceleration result down an incline plane (need a 25mm ball which not included)   more than just one timer. Link two timer with a special cable supplied to build up  a 4 photo gates system in one second.