Projecta DT830B Information The Projecta DT830B is a digital multimeter that is designed for basic electrical testing. It features a large LCD display, a rotary switch for selecting the measurement function, and two probes. The DT830B can measure AC and DC voltage, DC current, resistance, and continuity. It also has a diode test function and a buzzer that can be used to test for live wires. Introduction The Projecta DT830B is a popular digital multimeter that is known for its affordability and versatility. It is a good choice for DIYers, hobbyists, and electricians who need a basic multimeter for occasional use. The DT830B is not as feature-rich as some other digital multimeters, but it is a reliable and accurate tool that can be used for a variety of tasks.