Fluke clamp meters aim at technician safety Fluke has launched a family of clamp meters that aim to make electrical measurements 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. The Fluke 377 and 378 use FieldSenseTM 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. The clamp meters measure up to 1000 A True-rms AC/DC and up to 2500 A (AC) with the ‘iFlex’ current probe. Designed for ease of use, only three steps are needed to measure in three phase systems, with each voltage and current shown simultaneously on the dual display.