Fluke Fluke Eindhoven, Netherlands. May 11, 2021: Fluke has today announced the launch of a family of clamp meters that make electrical measurements much safer for servicing and maintenance technicians. The Fluke 377 and 378 are non-contact voltage True-rms AC/DC clamp meters that allow technicians to make rapid electrical tests without the danger of coming into contact with hazardous live parts. Non-contact measurement for increased safety The Fluke 377 and 378 use FieldSense™ technology to sense voltage and current through the clamp jaw, with only a connection to earth needed for reference. With no direct connection with live components, the risk of electric shock and arc flash is minimized.