The Fluke 1664 FC Multifunction Tester is engineered to meet all local regulatory standards while streamlining installation testing. It features an "Insulation Pre-test" that automatically detects connected appliances and safely halts the test if necessary. With its Auto Test feature, the device conducts seven installation tests in a single, seamless sequence using just one connection. Additionally, it integrates with Fluke Connect Measurements, allowing you to share test results in real time directly to your smartphone.