... detection; 7, temperature sensor open, short-circuit alarm function; LCD display use for water heatercustomised in controller with UL & ... testers·PCB design, layout, fabrication, assembly and function test·Lead-free technology SMT processCircuit board assembly fabrication ... layout, PCB manufacturing, PCB Assemblies, components sourcing, PCBA Function Test, design solution.Needed:1. PCB gerber file.2 ...