The MR525 is a hall effect current probe with a single range designed for DMM, Data loggers and Power Analyzers. The probe has a 5 ft (1.5m) lead terminated by 4mm safety banana plugs and can measure up to 1000AAC and 1400ADC. The probe is powered by a 9V battery or by a standard 5V external power supply via a micro-USB connector (not supplied).

The instrument's design includes internal temperature compensation.