AMITTARI AT-135B Rotation speed stroboscopic meter

AMITTARI AT-135B Strobe Rotation speed instrument test range 50~40000FPM, Measurement accuracy +/- (0.05% n + 1d), Sampling time: 0.3 seconds, internal trigger/external trigger free conversion, external trigger signal amplitude TTL level, fast FM × 2, ÷ 2, high-low range can be converted