The AEMC 3915-019-1415 is a digital megohmmeter designed for testing insulation resistance on electrical systems, heating and ventilation equipment, motors, and other similar applications. It is capable of measuring resistance values from 1 to 999 GO, with a range of 10kV DC and a test current of 10mA. The 3915-019-1415 includes a built-in memory for storing up to 20 test results, and a digital display for easy data reading. It also includes several safety features, such as an auto-discharge function, low voltage alarm, and an anti-reverse battery connection.