We are offering ultrasonic long range level controller . The lu01 is an ultrasonic long-range level controller for liquids and solids in a single vessel up to 60 m (200 ft). The system consists of a lu01 monitor linked to a non-contacting ultrasonic transducer that can be mounted up to 365 m (1200 ft) away. The system can measure distance, volume or level measurement. the lu02 is a dual point ultrasonic long-range level controller for liquids and solids in one or two vessels up to 60 m (200 ft). Lu02 can measure liquids, solids or a combination of both in one or two vessels of different sizes, shapes and configurations up to 60 m (200 ft). The system uses ultrasonic technology to measure level, space, distance, volume or averagedifferential. level & open channel - lu01lu02 - application examples chemical storageliquid storagebulk solids storage(gravel, flour bins, grains, cereals)plastic pellets level & open channel - lu01lu02 - technical specifications measuring range: 0.3 to 60 m (1 to 200 ft)output: 04 to 20 ma, optically isolatedambient temperature for enclosure: -20 to +50 c (-4 to +122 f)weight: 2.7 kg (6 lbs)power supplyac model: 100115200230 v ac 15%, 5060 hz, 31 vadc model: 18 to 30 v dc, 25 w