Beetech B-511 is a pocket-sized 3 3/4-digits, 4000 counts, auto+manual ranging multimeter. It has stable performance, high precision, high reliability, clear reading, with overload protection. This instrument can be used to measure DC voltage, AC voltage, DC Current, AC current, Resistance, Capacitance, Frequency, Diode Test, Continuity Test, Non Contact Voltage detection, true RMS measurement and other parameters. It is an ideal tool for engineers, electricians, hobbyist, electricians, etc. With AAA 1.5V battery the instrument uses a large-screen LCD display, boost power supply, even in the 2.3V low battery, it can guarantee high backlight brightness, the meter is easy to carry, has a vast number of usages. It has a torch to see clearly in dark areas. The multimeter will automatically turn off after 15 minutes without any operation or signal received.