LEM has launched a new digital output version for there Ho and HLSR This will provide open loop hall effect current transducer for converting analogue to digital by performing a Sigma Delta modulator that gives 1 bit serial bit stream output and this new component can measure current of 10, 30,  50, 80, 100, 120,150 , 200 and 250 A. The new transducers can use a supply voltage of 3.3 V or 5 V and the operating temperature range is from -40°C to +105°C