Supporting electrical systems up to 24 V, this circuit tester integrates a digital voltmeter with min/max voltage capturing to diagnose positive, negative, and open circuits. A momentary rocker switch enables the immediate application of power or ground to test components like relays and cooling fans via the 20-foot (6.1 m) lead set. This circuit tester also functions as a continuity tester and includes a built-in circuit breaker to identify short circuits without the need for replacement fuses.

Supporting electrical systems up to 24 V, this circuit tester integrates a digital voltmeter with min/max voltage capturing to diagnose positive, negative, and open circuits. A momentary rocker switch enables the immediate application of power or ground to test components like relays and cooling fans via the 20-foot (6.1 m) lead set. This circuit tester also functions as a continuity tester and includes a built-in circuit breaker to identify short circuits without the need for replacement fuses.