AT510 series digital multimeter is a high-precision and cost-effective digital multimeter developed by Applent. It has the functions of automatic / manual range measurement, automatic / manual sampling, automatic / manual triggering, short circuit zero point adjustment, automatic / manual maximum / minimum / range display, absolute value / relative value / percentage / sorting display, maximum 30000 data storage, RS-232 interface, RS-485 interface, 4-wire shielded (2 test terminals and 2 drive terminals) and external shielded ground section, temperature compensation and so on. It is widely used for measuring various resistors.