Handheld Automotive Multimeter (RPM Tachometer) - RPM METER
Handheld Automotive Multimeter (RPM Tachometer) RPM METER measures AC/DC voltage, dwell angle, engine RPM; large LCD screen for easy reading even in low light. Functions also include diode, HFT auto-ranging, impedance, capacitance, ohms, RPM, continuity, temperature, etc.