118.000.7018.210 an: IKIN SODIKIN
Using the SM-5A (model with transducer) improves accuracy at a distance and will be necessary whenever the SM-5 depthsounder alone can not reach the water. With the transducer at the end of a 12-foot wire, the unit can be used from boats, mounted inside or outside of the hull, or on a pole or boathook. The transducer fitting is waterproof, however, it is not for underwater use and cannot be submerged.
Frequency - 200kHz with 24° beam angle
Depth range from 2 to 260 feet (0.6 - 79 meters)
Power - Standard 9V dry cell battery (provides 500 x 10 second readings)
Dimensions - 7.7" x 1.7" (198 x 42mm)
Each reading is backlit and stays displayed for ten seconds
Note: The SM-5 can be converted to an SM-5A with the purchase of the EC-5A + Transducer. Depthsounders manufactured prior to 2001 cannot be converted.