Panel Tachometer, Minimum RPM 5 RPM, Maximum RPM 99,999 RPM, RPM Accuracy 0.005 Percent of Reading, RPM Resolution 1 RPM, Number of Digits 5, DIN Size 1/8, Cutout Height 1 3/4 in, Cutout Width 3 9/16 in, Output Current 5 mA, Output Voltage 5V DC, Calibration Certificate Type Not Certified, Input Voltage 100V to 240V AC, Digital Display Screen Type LED, Manufacturer Warranty Length 1 yr, Includes Instructions