The Megger 1002-015 is a single-channel, low-voltage insulation resistance tester. It offers a range of test voltages (including 250V, 500V, 1000V, and 2500V) and features a large, easy to read LED display. The tester is easy to use and requires minimal user setup, making it ideal for performing basic insulation tests. The 1002-015 also comes with a built-in memory, allowing users to store readings taken at multiple tested points. The device is single-phase and can be powered with either AC with a battery backup or DC. Additionally, the 1002-015 includes safety features such as an audible alarm when excessive current is detected.