The Simply Tools Digital Multimeter is great for checking wattage, voltage, amps and circuits. It has 7 functions and 19 ranges to cover: AC/DC voltage, resistance, DC amps battery, diode and signal H2 testing with two 575mm (23”) test leads. The unit includes low battery indicator, diode and fuse protected super sensitive meter. It can also: test decibel rations, diodes, and give transistor continuity tests.