... PID control, which can measure and automatically control parameters of temperature, rpm, pH, DO, feed, foam and etc. It possesses ... ; 2.Range 0-100% or 0-200%, precision ± 1%; 3. It has auto alarm function; 4. DO sensor and signal transmission line ... automatically control temperature 3. Measure range 0-150 degree, control range 15-45 degree,control precision ± 0.5degree 4. Pt 100 Ω temp. Sensor 6 ...