The PAX panel meters combine a sunlight readable red display with the added feature of user programmable variable intensity, which allows it operate equally well in a dark room or in a bright sunlight environment. The meters, with models for both analog and digital inputs, use a bright 0.5 in. (13 mm) high, red LED display, which is completely viewable in direct sunlight. The variable intensity allows the user to select one of 16 levels of intensity. The intensity, as well as the rest of the PAX programming, can be locked-out, protecting the unit from any unwanted changes. A front panel button or rear terminal user input can be programmed to allow quick access to the intensity adjustment.