* Stroboscope use high
intensity LED array. * LCD display with back light. * Stroboscope range :
10 to 99,999 RPM. * External trigger for stroboscope. * Photo tach. range
: 10 to 99,999 RPM. * Photo tachometer use the laser light beam. *
Optional contact tach. adapter, TA-35. * Power supply : Batteries, 1.5 V
(UM-1, D) x 4 PCs * AC/DC adapter is optional.