This is a red 3-digit LED display, each character is 7″ tall . Available with up to 2 radar gun inputs for displaying the highest speed recorded from the 2 radar guns, or use with only one radar gun for an extra large display. 1 input DL731, 2 inputs DL732, ect…Power is supplied by a 12VDC power adapter (included). The radar gun can not power the DL73x displays. Must be mounted on a table top stand, USM, or a heavy weight tripod*.