The five electronic parts that are manufactured by Gainta and begin with the designation IR PANEL- are: G512B-2C, G512G-2C, G519B-BC-1C, G519G-BC-1C, and G521B-2C.Each part is an infra-red (IR) panel with a filter. The components of each part are an IR panel, filter, gasket, and control panel. The panels and filters are designed to allow a specific level of infrared radiation to pass through and be detected by an electronic receiver.The G512B-2C and G512G-2C have an IR panel with a polyester filter with a color balance of B (blue) and G (green) respectively. The G519B-BC-1C and G519G-BC-1C have an IR panel with a polycarbonate filter with a color balance of B (blue) and G (green) respectively. The G521B-2C has an IR panel with polythene filter with a color balance of B (blue).