The HU31025 SCOPE+ Electrical Circuit Troubleshooting Tester from Ansed Diagnostic Solutions features color-coded screens to give technicians an easy-to-see status of the circuit. For example, when measuring voltage, the color-coded screen indicates green (ok), yellow (caution), red (no), or blue (over limit). The tester measures amps' draw without removing fuses, voltage (maximum 50VDC), cranking volts with auto hold function, resistance, frequency with peak to peak volts (up to 20 kHz), duty cycle, continuity test, and diode/LED test. It is easy to use and ideal to use in conjunction with the HU31035 Sensor Simulator.