The Fluke 317 and 319 are economical True-RMS AC/DC clamp meters with slim 37 mm jaws for cramped cabinet wiring. The standard 40 A high-precision range with 0.01 A resolution delivers stable accurate readings for tiny leakage and light loads. The base 317 supports 600 A AC/DC, 600 V voltage and 4 kΩ continuity/resistance for daily residential and property maintenance. The upgraded 319 extends capacity to 1000 A and adds motor inrush capture and frequency measurement for heavy-duty industrial equipment including large motors, PV inverters and welders. Equipped with backlit large display, data hold, Min/Max logging and auto power-off, rated CAT III 600 V, lightweight and portable, they are cost-effective testers for entry-level electricians and maintenance technicians.