Have you got a chirp sounder but not chirping yet ? 

Get yourself a chirp upgrade and get that fantastic target definition without slipping your boat.  By using an Airmar in hull chirp upgrade.

Detailed Description

As Chirp continues to redefine recreational fishing, Airmar has expanded the lineup of broadband transducers to satisfy the growing demand for this game changing technology. New to the market are the B150M and TM150M, economical Chirp transducers designed for offshore fishing and freshwater anglers. Operating at a frequency range of 95-155 kHz, these transducers reveal fish in shallow, murky waters at medium depths (up to 2,500 feet*) along with ultra-clear target resolution..

A tilted element model in the Chirp Thru-Hull product line, the B150 Chirps across the following bandwidth:

M Model - Medium Frequency 95-155 kHz


  • Depth and water temperature sensor
  • Ideal for inshore or coastal fishing in shallow to medium depths
  • Freshwater anglers will see fish holding close to structures and suspended fish
  • Track bottom at higher boat speeds
  • More coverage under your boat delivers wider arches and 26° to 17° beamwidths
  • Cover the medium frequency range—CHIRPs from 95-155kHz to provide 60 kHz of total bandwidth from one transducer
  • Available in plastic transom-mount with transom bracket and hardware and with a custom transom housing and cover (TM150M)
  • Also available as thru-hull installation (B150M)
  • Hull Type: Fiberglass, wood or metal
  • 1 internal ceramic
  • Exclusive Xducer ID® technology


  • Hull Deadrise: Up to 24°
  • Acoustic Window: Urethane
  • Weight: 1.4 kg (3 lb)

Simrad Lowrance Part number


This unit has a 12 degree offset with a black type connector we have adaptor cables to other units available.

Airmar Part 31-763-1-01

Call us for any advice on chirp transducers and model or the make of unit you have. 

For sale by authorised Airmar, Navico, Lowrance award winning service dealer.

JG Technologies Ltd.,   Weymouth, Dorset UK

Over 20 years selling Marine Electronics

Airmar Chirp B150M Thru-Hull Bronze for Navico chirp sounders 12 degree 000-13921-001

  • Brands Airmar
  • Product Code: B150M Blue plug
  • Availability: In Stock
  • £549.00

  • Ex Tax: £457.50