This 808-P2 Display from Garnet Instruments is part of their SeeLevel Special system, which is a level and volume system designed for tank trailers. The durable system is intrinsically safe, internally powered, weather resistant, and functions in a variety of liquids. The SeeLevel Special features the 808-P2 Display and the 810-X Sender Bar, which work in tandem to measure and display the liquid level in a tanker. Furthermore, it is compatible with Garnet's SpillStop and MultiRack Controller.