The instrument can be used for testing batteries, lamps, and fuses. Suitable for the most common battery types: - AAA - AA - C - D - SH16 - MN2400 - R03 - HP7 - MN1500 - UM3 - HP11 - MN1400 - SP11 - LR14 - UM2 - HP2 - MN1399 - SP2 - R20 - UM1 - PP3 - MN1604 - 6F22 - 006P - 9 Volt - and "button" types Ideal for measuring household, car, motorcycle, scooter, and other fuses. You can easily check most lamps on the market to see if they are burned out or functioning properly. All measurements are displayed directly on the device's dial. Operates with a 9-volt battery.