The Fluke 1664 FC multifunction installation tester brings advanced capabilities to electrical installation testing with Fluke Connect wireless connectivity. It verifies safety in domestic, commercial, and industrial applications, ensuring fixed wiring meets IEC 60364 and local standards.

The 1664 FC features Fluke's Insulation PreTest function that prevents testing when appliances remain connected, eliminating accidental damage. With Fluke Connect, test results transmit directly to a smartphone and to Fluke Cloud storage, enabling team collaboration, feedback, and work order management without manual transcription errors.

Measurement functions include TRMS voltage and frequency, wiring polarity checking, insulation resistance at 50-1000V (L-N, L-PE, N-PE), continuity testing on all input pairs, earth resistance, loop and line resistance with mΩ resolution, prospective fault currents, and comprehensive RCD testing including smooth DC-sensitive Type B/B+ devices. The RCD test measures trip time and current for Type A and AC in one test with variable test current and automatic sequences.

The Auto Test function performs seven critical tests with one button push, reducing connections and errors. The intuitive interface includes an on/off switchable auto-start for RCD and loop tests, and IP40 rated housing. Compliance includes IEC/EN, UL, ANSI/ISA, and CAN/CSA standards.