100% Germany/ Japan  Origin

Hans Schmidt   Vietnam

Model: DT-311D
Stroboscope
Digital display, 85 - 240 V AC
Measuring range 60 - 12000 flashes per minute (FPM)
Frequency range 1 - 200 Hz
(replaces obsolete DT-311N)
Note: DT-311D has smaller mearing range (60 – 12000 rmp) compared to the DT-311N (40.0-35000 rpm)