Speedtech Depthmate Portable Sounder

Anchoring security for cruising sailors! Find deep water easily from your dinghy. This unique pocket-sized depth sounder is very accurate and of very high quality. It is useful for boating, fishing, scuba diving, coastal survey, and scientific work. Features: Reads in Feet or Meters, to the nearest tenth through a solid hull, inflatable bottom, or black ice. This is an extremely accurate unit when used properly. 400 kHz with 6 beam angle Reads from 2 feet to 260 feet Each reading is backlit and stays displayed for ten seconds. Simply put the head in the water, or against the solid hull of a boat. Sonar will not read through air. Note: Depthsounders manufactured prior to 2001 cannot be converted. Specifications: FREQUENCY: 400kz (Beam Angle 6) WATERPROOF: to 160 feet; 50 meters RANGE: 2-260 feet or .6 - 79 meters POWER: Standard 9V dry cell battery (good for 500 10 second readings) MEASURES: 7.7 x 1.7 inches (198x42mm) WEIGHS: 10 oz / 300 grams