Pulse Meter, Minimum RPM 0.1 RPM, Maximum RPM 10,000 RPM, RPM Accuracy 0.1 Percent of Reading, RPM Resolution 0.1 RPM, Number of Digits 5, DIN Size 1/32, Cutout Height 7/8 in, Cutout Width 1 3/4 in, Output Current Not Applicable, Output Voltage Not Applicable, Calibration Certificate Type Not Applicable, Input Voltage 3V DC, Digital Display Screen Type LCD, Manufacturer Warranty Length 3 yr, Includes Instructions and Mounting Bracket WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -