45 Test Ranges, 12 Test Functions Professional Quality and Easy to Use RPM Pickup and Temp Probe Included Large LCD Display w/Analog Bar Graph Data Hold and Range Select Built-In Temperature Readings 10 Meg/Ohm Input Impedance Includes: Probe Leads, Alligator Clip Leads, RPM Pickup, Temp Probe, Protective Holster, 9V Battery &Instructions Auto-Ranging Voltage, Resistance and Current RPM ? DIS & Conventional Ignition Temperature F & C Frequency ? For Testing MAP & MAF Sensors Duty Cycle ? For Testing Feedback Carburetors, EGR & Ignition Continuity Beep and Diode Test