Fluke’s 353 and 355 true-RMS clamp meters give accurate readings up to 2000A in industrial and utility applications without the need to disconnect equipment.

The rugged design and CAT IV 600V/CAT III 1000V safety ratings offer protection in high-voltage applications, enabling checking of new installations, troubleshooting and the taking of accurate measurements on UPS and variable frequency drives with noisy loads. Both have extra-wide jaws, up to 58mm, to clamp easily around large conductors and bus-bars typically found in high-current applications. A special mode button offers accurate peak measurements of in-rush currents.