The Fluke T5 Series is an all-in-one portable electrical tester integrating three core functions: OpenJaw™ non-disconnect current measurement, AC/DC voltage detection, resistance and continuity testing, available in two models: T5-600 (600 V CAT III) and T5-1000 (1000 V CAT III / 600 V CAT IV). It measures up to 100 A AC current by simply sliding wires into the OpenJaw fork without cutting or disconnecting circuits. Equipped with audible continuity beeper and voltage warning LED, plus detachable slim reach probes for tight wire ducts, distribution boxes, HVAC, consumer electronics and automotive electrical troubleshooting. The rugged drop-resistant chassis features built-in test lead storage and auto power-off power saving, serving as essential standard gear for electricians’ fast on-site circuit fault diagnosis.