Visual inspection of electrical connections is sometimes not enough. To properly confirm the integrity of a connection, resistance must be measured to ensure a good connection. Terminals with corroded or degraded connections can cause electrical loss, and if not addressed immediately, the terminal may eventually fail.
The Vanguard Auto-Ohm 100A Automatic Digital Low Resistance Ohmmeter measures resistance changes between metal contacts which can be an indicator of its condition. The Vanguard Auto-Ohm 100A features an output current of 10 amperes to 100 amperes, along with an automatic test mode and a controlled rise and fall current. The Vanguard Auto-Ohm 100A also has a backlit LCD making it convenient when testing in dark places. The resistance range of theVanguard Auto-Ohm 100A is from 1 micro-ohm to 300 milli-ohms with an accuracy of ±1%, and it has a thermally protected power supply and conforms to the IEC61010, ULC61010A-1 and CSA C22.2 standards.