This is a Digital Hand Held Contact type Tachometer and has Micro Computer LSI Chip.

Having 5 Digit LCD Display , battery operated Range : 5 to 19,999 rpm , 0.05 to 1999.9 m/min , 0.2 to 6560 ft / min. Accuracy of 0.05% with Carrying Case with all accessories in a box with memory call button.

It comes complete with instruction manual and various tachometer attachments.