Item number: 10005630

Sonar Fishfinder- 100 m Portable Depth Finder Fishing Device

Durable sonar based fish-tracking device with up to 100 metres depth scanning, accurate continuous measurement and informative LCD display.

Suitable for night and ice fishing. Suitable for use in rivers, ponds and lakes.

Suitable for hand-held use or mounting on the boat's hull.

The OneConcept Fish Finder is a results-oriented fishing device which shows how populated fishing areas are to a depth of 100 metres with a scanning angle of 45°, regardless of the size of the fish.

The key component of the device is a sonar that transmits scan results through an 8 foot cable to the control unit. The gathered information is shown clearly on a 2 inch (5cm) screen, including the position and depth of fish, and plant and terrain imaging.

The OneConcept Sonar Fish Finder is user-friendly and effective in any environmental conditions. At night time or during poor visibility, backlighting will help make the screen visible but this is switched off during good conditions to conserve energy. In addition, the device has been designed to work in temperatures as low as -20°C degrees for use in ice-fishing.

The device can be mounted to the hull of the boat using the materials supplied, and can also be used as a hand-held device.

Designed to withstand adverse weather conditions, this handy and sturdy fish finder is the perfect size so as not to clutter up tackle boxes.

Product details


  • Sonar-based fish-finding device for river, pond and lake-fishing
  • A depth of up to 100 metres with a scanning angle of 45°
  • Anti-reflective, informative 2" display with fish position and depth, and terrain conditions
  • Suitable for night- and ice-fishing, operating at temperatures between -20 and 70°C
  • Secure grip on a water-resistant case
  • Handy size to fit into every fishing box


  • 1x Main unit
  • 1 x Sonar cable and float
  • 1 x Wrist/neck strap
  • Mounting hardware for sonar (bolts and wing nuts)


  • 2.8 x 4.7 x 1.2 inches (7 x 12 x 3cm)
  • Cable length: about 26 feet (8 metres)
  • Weight main unit: 132g
  • Sensor weight: 120g


  • Acoustic alarm function
  • Results updated every second
  • Adjustable sensitivity
  • 3 stage indication of water plants
  • 3 stage indication of terrain
  • Removable yellow float
  • Depth reading in feet or metres
  • LCD backlight option
  • Energy-saving mode
  • Battery gauge
  • Minimum scan depth of 27.5" (0.7m)
  • Simulation mode
  • Power supply: 4 x AAA batteries (not included)
  • Sonar power supply: from main unit

Operating instructions

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Sonar Fishfinder- 100 m Portable Depth Finder Fishing Device

  • Sonar-based fish finding equipment
  • Up to 100 metres depth scanning
  • Suitable for night and ice fishing
£64.99 Incl. VAT
You can change your order at any time

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