This combo kit is designed with the needs of working electricians in mind and includes the 2217-20 Digital Multimeter, a True-RMS along with all the features that are needed to get the job done on the jobsite. It also includes the 2202-20 Voltage Detector with built in LED light, a truly rugged tool with the highest safety rating in the industry, with a wide 50 to 1000 volt AC range. The kit also has two of the most useful hand tools on the market, the 48-22-1901 Fastback Utility Knife features built-in wire stripping and the 48-22-2114 11 in 1 Multi-Tip Screwdriver which has 10 bits and nut drivers most requested by professionals. The kit also comes with an electrical test lead set, dual banana thermocouple, magnetic meter holder, soft meter case, and all of the batteries for the 2217-20 and 2202-20.