路昌DT2199闪频转速计|路昌DT2199闪频转速计|路昌DT2199闪频转速计
STROBOSCOPE, battery power, LED array Model : DT-2199 * Stroboscope use high intensity LED array. * LCD display with back light. * Stroboscope range : 100 to 99,999 RPM. * Power supply : Batteries, 1.5 V (UM-1, D) x 4 PCs. * AC/DC adapter is optional.