Qmax Test Equipments Pvt Ltd. Manufactures PXI-5112-Digitizers/Oscilloscopes. Qmax Test Equipments Pvt Ltd. Is ISO 9001 certified company and its marketing and customer support operations are ISO 9002 certified. PXI-5112-Digitizers/Oscilloscopes consist of time stamping of records to 2 ns accuracy, 2 channels, simultaneously sampled. It ranges from ± 25 mV to ± 25 V input range with maximum DC offset of ± 37 V.