Display Size: 10.4 inches
Display Type: Color LCD
Range: 5000′
Power Output: 1.2 kW
Frequency: 150 kHz
Power Use: 12 VDC

The Furuno CH250 is the sport fisherman’s dream machine, designed for boats 40 feet and up. This high-performance searchlight sonar displays fish and underwater objects on a sunlight viewable 10.4″ color LCD TFT display. It has the ability to rapidly scan a full 360 degrees around the boat or just specified sectors.

There are eight operational modes to choose from. The full circle/vertical slice mode finds fish targets and bottom structure all around the vessel, with a vertical slice display at the same time. The vertical slice mode gives you a fore and aft, surface to surface, expanded view of fish school distribution on the selected bearing. You can set it for a depth sounder mode, which has a tilt and train capability for forward or side looking. It is even stabilized against the boats motion.

Model / Part #
001-308-620-00 CBL ASSY 06S4078 5M CH250

CH250DISP 10.4 Inch Color TFT LCD Display with CH252 Control Unit

CH250INST2 Sonar Oil and Flange with Installation Materials

MS100 Motion Sensor with 10 Meter Cable Assembly

CH253 Transceiver

CH2542/150/5.2 150kHz Soundome Assembly with 5.2 Meter Cable Assembly

CH2551/150/225 150kHz Hoist Unit, 250mm Travel, 12VDC

BLSHAFT7 7 Foot Stainless Steel Soundome Shaft. (2.2 Meters)

001-247-730-00 15M CABLE 06S4080 CH250 CH300

Standard Features

  • Waterproof, 10.4″ Color TFT LCD, landscape orientation
  • 8 or 16 color targets including white, selectable day or night background color
  • 1200 Watt (RMS) transmitter power output, 150 kHz
  • Standard with MS100 motion sensor (clinometer) for 360 degree stabilization of sonar image
  • Automatic soundome retraction at preset ships speed between 5 to 15 knots, speed data required
  • 6.5 degree (H) x 6.5 degree (V) transducer beam angle, 1 degree tilt angle steps, +90 degrees max
  • Transducer tilt angle may be set in 1 degree steps from + 5 to – 90 degrees
  • 3 Custom Mode Keys to select unique search features such as «Forward S/L Fan Scan»
  • Audio Target Detection, continuous visual watch not necessary, optional speaker required
  • Omnipad Driven Cursor, range, bearing and depth data plus tilt, slant range and 5 event marks
  • 8 Display Operating Modes
    • Horizontal S/L Scan, 0 to 360 in 6 degree steps, 15 ranges to a maximum of 5000 feet
      Normal ( 6 degree) or Fast Scan ( 12 degree ) steps within a selected horizontal sector
    • Split Screen, Zoomed Horizontal S/L Scan display with Nav data
    • Vertical S/L Fan Scan, 0 to 180 in 12 degree steps, 15 ranges to a maximum of 2000 feet
      Normal ( 3 degree) or High Speed ( 6 degree) scan steps within selected vertical sector
    • Split Screen Echo Sounder, 15 ranges, maximum 2000 feet, with Nav Data or
      A- Scope display
    • Split Screen, Horizontal and Vertical S/L Scan Display
    • Split Screen, combination Horizontal S/L Scan with Plotter Overlay and Track Display
      Own ship speed and heading vector, duration set from 10 seconds to 6 minutes
    • Split Screen, combination Horizontal S/L Scan and Strata Display
  • Reverse train Target Lock, used in both Horizontal and Vertical S/L Fan Scan
  • Target Lock on a preset L/L position Auto Tilt Tracking, TLL output, L/L data input req.

Power Requirements

  • CH253 Transceiver, 12-32 VDC, 60 Watts
  • CH2551 Hoist Unit, as noted above, 200 Watts


  1. 190mm ID hull tube is required but not supplied with the standard system
  2. CH256 handheld remote control with 5 meter cable is optional
  3. 400mmTravel Hoist Unit Available Upon Request