EXTECH 461831 二合一光电转速仪&频闪观测仪（220VAC，50Hz）

Flash/Speed Rate: 100 to 10,000 FPM/RPM

Accuracy: ±(0.05%rdg +1 digit)

Duty Cycle: 5 to 30 minutes

Sampling Time: 1 second

Dimensions: 8.3 x 4.8 x 4.8" (211 x 122 x 122mm)

Weight: 2.2 lbs. (1 kg)

Datasheet

Manual