Promag DSP840 - 20 x 2 VFD Customer Pole Display

5 x 7 dot matrix, blue-green VFD up to 20 x 2 characters(2 lines)
Promag DSP820 - LCD Graphic Customer Pole Display

240 x 64 pixels with backlight, up to 20 x 4 characters(4 lines)
Promag DSP830 - LCD Special Character Pole Display

240 x 64 pixels with backlight, up to 30 x 4 characters(4 lines)