1.Multi-Function Process Calibrator 2.32 function keys and numeric keys ... 4.224*172*59mm 5.auto range I.Multi-Function Process CalibratorII.Brief Introduction1. Measure V, mA, Ω, frequency, temperature, ... 40000 reading max2. Source V, mA, frequency, high resolution, voltage and current is scale up in 0 to ... .1% + 100.05Hz0.5Hz2Hz0.3% + 1°C Multi-Function Process Calibrator