Very low amount of current 2000pA - 200A can be measured with this instrument. A range selector switch to select the desired range of current is fitted on the front panel. Seven segment displays with a facility of overloading is fitted on the front panel to display the current passing through a circuit. Input is applied via. 4mm safety sockets or BNC socket. To set the initial value of DPM at null point a knob is fitted just below the DPM. Whole assembly is housed inside an aluminium extrusion channel fitted with high grade sturdy covers and ABS side Cover.