How a precision DMM have a high input impedance in the Gohm Rang?
Multimeter protection and safety
Basic High Performance Digital Multimeter
Uni-T Ut107 Low Price Handheld Automotive Multimeter with Manual Range Multipurpose Meters Input Protection Tach Battery Tester - China Volt Meter and Dmm
Meter Adaptor With Symmetrical Input - EEWeb
Multimeter protection and safety
Durable Digital Multimeter Overload Protection Smart Multimeter Backlit Design Multifunctional Non-contact Digital Multimeter - AliExpress