Portable digital sonar depth gauge

Portable digital sonar depth gauge Model: US61M/Hondex Library No.M336371 I.

Overview: The instrument is a compact portable field measurement tool, the use of acoustic ranging principle, the inverter firing high-frequency pulse, and then return the signal to quickly measure the bottom depth.Instruments with LCD digital display readout, using imperial or metric units, using 9V battery, can operate for about 500 measurements.Instrument has an automatic shutdown feature, the stop operation after 10 seconds before automatic shutdown.Instrument design is waterproof, water resistant to 50 meters.

The instrument has two types: ² built-in converter: one signal generator and instruments; ² external drive type: external signal generator, 3.5 m cable; 2 optional: Drive External type instrument accessories: hull mounting accessories for the type of instrument to use an external drive.

Third, the basic technical specifications: Minimum sounding: 1.8 feet (0.6 meters); Maximum measuring depth: 260 feet (79 meters); Accuracy: 1%; Signal frequency: 400KHz (beam angle: 12 º); Size: 1.7 ft × 7.8 ft (42mm × 198mm); Weight: 285 grams (with battery)