Product Description: Reads depths from 2.5-200 ft. (in 10ths in less than 15 ft.). Shallow water alarm 3-30'. Transducer frequency of 200 kHz. Beam Angle: 27. Transmit Power: 250 Watts. Power Requirements: 11-16 VDC; .175 amp max. LCD Window Size: 206, 1-3/8 x 3/4. Case Dimensions: 206, 2" dia. x 3-1/4". Built-in simulator.