... output 2.LCD digital indicator with back light 3.Temperature compensation 4 High precision PH sensor ApplicationIndustrial waste water,pure water, circulating ... printing and dyeing, electronic semiconductor, chemical, pharmaceutical, etcFeatures:1.High impedance preamplifier, strong ability of anti-interference 2.Transmission distance ... 60HZ12.Dimension: 96*96*125mm13.N.W: 1 KG High precision PH sensor