Item #883304

SI-TEX SDD-110 Digital Depth Indicator - SDD-110FM-B

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Image of : SI-TEX SDD-110 Digital Depth Indicator - SDD-110FM-B SI-TEX SDD-110 Digital Depth Indicator - SDD-110FM-B Item # 883304


Similar to SI-TEX's popular SST-110 temp gauge, the Sitex SDD-110 Seawater Depth Indicator with Bronze Thru-Hull Transducer is a drop-in replacement for the venerable Datamarine Offshore Digital Sounder, popular for many years on numerous sportsfishing vessels and workboats.


  • Sitex SDD-110FM-B operates on working frequency of 120kHz, so it won't interfere with other onboard echosounders
  • Digital Signal Processing (DSP) technology delivers accurate digital depth readings in easy-to-read numerals
  • Large, four-digit LCD display offers five levels of backlighting for optimum visibility in all ambient light conditions
  • One-piece system avoids need for black-box sounder or complicated wiring associated with network sounders
  • The 120kHz transducer plugs directly into back of unit for easy installation
  • SDD-110 uses a low profile, retractable, thru-hull transducer with a 38-degree beam angle
  • Allows for easy installation and proper beam orientation on most hulls without the need for a fairing block
  • In addition to providing precise water depth data, the SDD-110 also features a visible trend indicator to indicate if depth is increasing or decreasing
  • Audible alarms alert operator to dangerous shallowing conditions or if the water drops below a selected depth, useful for fishing
  • NMEA-0183 depth data output can be interfaced with other onboard equipment


  • Dimensions: 4.3" X 4.3" X 3.5"
  • Depth range: 1.2 to 1000 feet (0.3 to 365 Meters) 0.1 Feet, Meters or Fathoms below 20.0 , full digits above 20
  • Power supply: 9.50 to 16.00 VDC, .037 amps nominal
  • Operating temperature: 32 to 122 F (0 to 50 C) Size: 4.3" x 4.3" x 3.5" deep (110 x 110 x 89 mm)
  • Resolution: 20
  • Keel offset adjust range: - 20.0 to +20.0 feet
  • Alarms: Shallow depth; Deep depth; Anchor drag; External alarm output or (NMEA output)
  • Display: 4 digit LCD
    • Feet, meters, fathoms icons
    • Alarm ON/OFF icon
    • (5) levels of backlighting
    • External and internal ON/OFF control for backlights
    • Variable display damping
  • NMEA 0183:
    • $SDDPT, Depth below transducer in meters
    • $SDDBT, Depth in feet, meters, fathoms

408 B Thru Hull Transducer Specifications: (Included)

  • Applications: Fiberglass or wood hulls only
  • Frequency: 120 kHz to 200 kHz
  • Power: 300W
  • Low Profile (Retractable for low drag)
    • Includes a retractable insert that allows for the removal of the transducer without having to haul the vessel out of the water
    • The housing is of a low profile design that has excellent water flow characteristics
    • Provides for excellent high speed performance with very little drag
  • Diameter (stem) 2"
  • Flange diameter: 3"
  • Beam angle: 18 - 38 Degree
  • Options:
    • Temperature sensor
    • Custom element configurations
    • Impedance matching

Product Data Sheet (1.18 MB)

Part Numbers for SI-TEX SDD-110 Digital Depth Indicator - SDD-110FM-B

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