Red Lion's LD4 4 inch (101 mm) high LED display is easily read from a distance of up to 180 feet. Housed in an extremely rugged aluminum case the product provides NEMA 4X/IP65 protection making this display perfect for industrial applications. Various models for count/rate, time, voltage/current/process, strain gage and serial slave display are available. Some models provide dual setpoints for control and RS-232 or RS-485 communication to allow the displayed data to be networked.