Handheld Digital Tachometer Laser RPM Tach Meter Motor Speed Gauge UK

Basic accuracy: ± (0.1% n + 5d) rpm; (2.5 ~ 999.9rpm) soil (1% n + 5d) rpm; (1000 ~ 99999rpm). Resolution: 0.1rpm (2.5 ~ 999.9rpm) 1rpm (1000 ~ 99999rpm). Laser power: CL ASSII 2- 5mW. Range: 2.5-99999rpm.

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