25x more sensitive

The Airmar B258 Thru-Hull Transducer is 25 times more sensitive than a single-element 50/200 kHz transducer. This innovative 1kW transducer makes 600W fishfinders perform like their more powerful big brothers—especially at 50 kHz. How does it do it? The B258 uses Airmar’s new and unique ceramic-element construction. The resulting narrow beams will clearly distinguish individual fish and bottom fish from their habitat at depths down to 670 m (2,200’). Even at speeds of over 30 knots, the screen display shows clear images and a clean bottom trace.

Airmar B258 Thru-Hull 1kW Transducer Features:

• Entry-level, 1 kW thru-hull
  
• Depth and fast-response water-temperature sensor
  
• Recommended for sport fishing boats above 9m (30’) and small to mid-size commercial fishing boats
  
• Four 50/200 kHz ceramics as compared to one ceramic in 600 W units
  
• Usable Shaft Length: ~121 mm (4.75”)
  
• Provides greater surface area resulting in better sensitivity
  
• Compatible with single-transmission line sounders
  
• High-Performance Fairing included
  

Airmar B258 Thru-Hull 1kW Transducer Specifications:

• Frequency: 50/200 kHz
  
• RMS Power: 1 kW
  
• Maximum Depth Range:
  50 kHz—441 m to 647 m (1,500’ to 2,200’)
  200 kHz—206 m to 294 m (700’ to 1,000’)
  
• Medium Frequency
  Frequency: 85-135 kHz
  Cone: 16° to 11°
  
• Wide Beam
  Frequency: 150-250 kHz
  Cone: 25° Constant