... the detection; 7, temperature sensor open, short-circuit alarm function; LCD display use for water heatercustomised in controller with UL & CE.1 ... ·PCB design, layout, fabrication, assembly and function test·Lead-free technology SMT processCircuit board assembly fabrication:One-stop pcb assemblies service ... ,ISO14001,ISO/TS16949,ROHS15profiling punchingRouting,V-CUT,Beveling Water heater LCD display