Garmin Xdcr,B175M,8-pin, CHIRP,1kW,Brnz Thru-hull, 20, MF
The Airmar B175M is a mid-frequency (M) element from Airmar's established B175 broadband CHIRP thru-hull transducer series, sold here through Garmin's marine electronics catalogue for direct installation with Garmin CHIRP-capable sounders and chartplotter/sonar combo units. It's a permanent bronze thru-hull sensor -- the transducer element sits flush against a below-waterline bore through the hull, with the housing itself protruding less than 1/4 inch outside the hull once installed, so it adds no meaningful drag and doesn't interfere with a boat's handling the way a transom-mount alternative can. This specific unit is Airmar's 'M' (mid-frequency) tilted-element version, built with a fixed 20-degree internal tilt to compensate for a hull deadrise of roughly that angle at the transducer's mounting location, keeping the sonar beam pointed straight down at the seabed on an angled hull rather than off to one side.
In practical use, the mid-frequency element trades a little of the fine target-separation detail a high-frequency (H) element gives for greater depth penetration and steadier bottom tracking in deeper or more offshore water -- the M and H elements in Airmar's B175 line are deliberately positioned as depth-vs-detail alternatives rather than one simply being an upgrade over the other. It carries Airmar's standard 1kW power rating and an 8-pin connector for direct wiring into a compatible Garmin sounder module or MFD sonar input, and, like the rest of the B175 family, supports CHIRP broadband transmission for depth sounding and bottom/fish-target imaging, with a rated maximum working depth in the region of several hundred metres. As a thru-hull unit it ships as the transducer and mounting hardware only -- no display or cabling beyond the connector included -- for a boatbuilder or installer fitting a fixed, below-the-waterline sensor.
Online price incl. VAT
Availability: Stock available — ships within 1-3 business days
Transducer Element
- Frequency Band: Mid-Frequency (M element)
- Power Rating: 1 kW
- Signal Type: CHIRP broadband
- Approx. Frequency Range: ~85-135 kHz (Airmar B175 mid-frequency band)
Connectivity
- Connector: 8-pin
- Compatibility: Garmin CHIRP-capable sounder modules / MFD sonar inputs
Physical & Mounting
- Mounting Type: Bronze thru-hull, flush-mounted
- Tilt Angle: 20 degrees (fixed internal tilt to match hull deadrise)
- Housing Material: Bronze
- Hull Protrusion: Less than 1/4 inch outside the hull