we deal in electrical electronic applications for testing & measurement sigma, million megohm meter (insulation resistance tester / ir meter, meggar digital / analog), cable fault locator, cr / cable length & fault locator, digital milliohm meter (conductor resistance meter / cr meter), digital ohm meter, comparator, digital micro ohm meter, digital power analyzer, digital capacitance meter, oscilloscope, digital panel meter, digital watt meter, digital frequency counter, digital lux meter, sound level meter, digital temperature (cum) humidity meter, digital temperature indicator, sine square wave generator, sine square triangle function generator, power supply dc regulated, standard resistance box duly ertl calibrated, standard ac kv meter or dc kv meter, thermal stability test apparatus, spark tester, kelvin bridge, high voltage tester, digital lcr meter, digital tong tester, digital techo meter, digital ph meter, digital multi meter, meggar, digital attenuation meter, digital smd component tester, digital three phase power clamp meter, digital anemo meter, digital stroboscope, digital vibration meter, digital impedance meter, digital capacitance unbalance meter, waterbath, ageing oven, universal oven, digital clamp meter, etc

we begin with little things for our customer's satisfaction, sigma instruments meant for committed performance and after sale service extensive to indian electrical / electronic industries.

mr. n. r. manwani, postgraduate in electronics have aim to offer state of art instruments for various application users friendly, service oriented.