ESCO Compact Tachometer (Non-Contact) EA714KA

Measurement Method: Non-Contact Measurement Range: 100.0/99,999 rpm Resolution: 0.1 rpm (100.0/19,999.9 rpm), 1 rpm (other ranges) Accuracy: ±(0.02% rdg + 1 dgt) Measurement Distance: 100/400 mm Sampling Rate: 2 times/second Functions: Data Hold, Average Value Display, Backlight, Auto Power Off Operating Temperature/Humidity: 0/50°C, 70% RH or less (non-condensing) Storage Temperature/Humidity: -20/60°C, 80% RH or less (non-condensing; be sure to remove the battery.)