label: printed circuit board,pcb
Fuel cell breath alcohol testers are primarily composed of a fuel cell, pump, mouthpiece, printed circuit board (pcb), and a liquid crystal display (LCD) or light-emitting diode (LED) all contained within a plastic case generally made from low density polyethylene (LDPE), polypropylene (PP), or polystyrene (PS) plastic. The fuel cell is made from two platinum coated electrodes and a permeable pcb electrolyte pcb material.
The pump is made of glass and nylon and used to pull the alcohol into the BAT. At the heart of the BAT is the pcb which controls the entire unit pcb. The microprocessor contains the coding that the uses to carry out the functions. The device also uses a LCD or LED to present instructions to the user, including the results or potential error messages.
