Elma BM 257 is a new smart mini multimeter with two new intelligent functions. Autocheck is an intelligent function which automatically detects and chooses AC voltage, DC voltage, continuity and resistance scale. All you have to do is turn on the instrument and measure. Low Z is a way to measure voltage with low impedance. This means that the measured object is tested under load, securing that the correct voltage is measured. The instruments build-in contact free detection of energy fields can be used for contact free detection of magnetic fields from computer screens and voltage detection. Elma BM257 measures in true RMS current, voltage, frequency, capacity, continuity and temperature. Elma BM 257 has displaylight with analog bargraph for easy and fast reading. The instrument is equipped with automatic and manual range, relative range, peak hold, min/max, datahold and auto power off. With PC communication and the Windows software (accessories) it is possible to record data in real time to a PC. The instrument is very safe and robust, and secured against fail handling with hi efficient fuses. The instrument complies with IEC 61010-1 CATIII 600V / KAT IV 300V and is delivered complete incl. rubber housing, test leads, temperature probe (-50°C - +250°C) batteries and user manual.