Garmin
Garmin GT15M-THF
£820.00
/
Tax included.
Shipping calculated at checkout.
010-02868-02
The Garmin GT15M-THF 20 degree is a stainless steel thru-hull transducer delivering 600 W mid-band CHIRP traditional sonar. The built-in 20 degree element flush-mounts on hulls of 17 to 24 degrees deadrise with no fairing block required, and it suits fibreglass through to metal hulls.
✓
Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin GT15M-THF delivers powerful 600 W mid-band CHIRP traditional sonar from a clean flush thru-hull fitting, with a stainless steel housing suitable for fibreglass, wood, composite, aluminium and steel hulls. Operating across 85 to 165 kHz, it produces excellent target separation and clear bottom detail to 580 m (1,900 ft) in freshwater and 365 m (1,200 ft) in saltwater. This 20 degree version has the correcting angle built into the housing, so it flush-mounts on hulls with 17 to 24 degrees of deadrise without cutting a separate fairing block. For aluminium and steel hulls the included galvanic isolation components prevent corrosion. A 15 m (50 ft) cable terminates in an 8-pin connector that plugs into a compatible Garmin chartplotter, fishfinder or sonar black box, with Garmin auto-detection setting up the sonar and a water-temperature reading supported on compatible displays.
PRODUCT DETAILS
- Mid-band CHIRP traditional sonar (85 to 165 kHz) for strong target separation and bottom detail
- 600 W transmit power reaches depths to 580 m (1,900 ft) in freshwater and 365 m (1,200 ft) in saltwater
- Stainless steel thru-hull housing for fibreglass, wood, composite, aluminium and steel hulls
- 20 degree element flush-mounts on hulls with 17 to 24 degrees of deadrise, no fairing block to cut
- Built-in 8-pin connector with a 15 m (50 ft) cable for a clean run to your chartplotter or sounder
- Galvanic isolation components included for safe installation in aluminium and steel hulls
- GT15M-THF stainless steel thru-hull transducer (20 degree element)
- 15 m (50 ft) cable with 8-pin connector
- Nylon washer and hull nut
- Galvanic isolation components (hull isolator and thread isolator) for metal hulls
- Documentation
No exploded diagram available for this product.
No compatible transducers listed for this product.
No spares or accessories listed for this product.
No compatible products found.
Sonar
| Sonar type | Mid-band CHIRP traditional sonar (single channel) |
| Frequency | 85 to 165 kHz (dependent upon the chartplotter, fishfinder or sounder) |
| Transmit power | 600 W |
| Maximum depth | Freshwater 580 m (1,900 ft); saltwater 365 m (1,200 ft), dependent upon water conditions |
Beam
| Beamwidth | 24 to 16 degrees |
Mounting
| Mount type | Thru-hull, flush, with deadrise angle built into the housing (no separate fairing block required) |
| Deadrise (this variant) | 20 degree element, for hull deadrise 17 to 24 degrees |
| Compatible hull materials | Fibreglass, wood, composite, aluminium and steel. In aluminium or steel hulls the included galvanic isolation components (hull isolator and thread isolator) must be fitted to prevent galvanic corrosion |
| Hole saw required | 73 mm (2 7/8 in) for fibreglass; 75 mm (3 in) for a metal hull |
| Anti-fouling | Apply water-based anti-fouling paint every six months; never use ketone-based paint |
Physical
| Housing material | Stainless steel |
| Weight | 2.3 kg (5.1 lb); add 27 g (1 oz) for the metal-hull isolation components |
| Dimensions | Thread diameter 70 mm (2.76 in); flange diameter 94 mm (3.70 in); height 146 mm (5.75 in) |
| Operating temperature | 0 to 50 C (32 to 122 F) |
| Storage temperature | -40 to 70 C (-40 to 158 F) |
Connectivity
| Connector | 8-pin |
| Cable length | 15 m (50 ft) |
Compatibility
| Compatible devices | Connects to a Garmin chartplotter, fishfinder or sonar black box with an 8-pin sonar port; performance dependent upon the chartplotter, fishfinder or sounder model. A Garmin chartplotter software update is required at installation. |
General
| In the box | GT15M-THF stainless steel thru-hull transducer (20 degree) with 15 m cable, nylon washer, hull nut, and galvanic isolation components (hull isolator and thread isolator) for metal-hull installation, documentation |
No videos available for this product.
Which hull types can the GT15M-THF be fitted to?
It has a stainless steel housing suitable for fibreglass, wood, composite, aluminium and steel hulls. When fitting it to an aluminium or steel hull you must install the included galvanic isolation components (hull isolator and thread isolator) to prevent galvanic corrosion.
Do I need a fairing block with this transducer?
No. The deadrise correction is built into the housing. This 20 degree version suits hulls with 17 to 24 degrees of deadrise. Point the arrow on the top to the keel so the internal angle aligns with the hull. Choose the 0 degree variant for 0 to 5 degrees, the 12 degree variant for 6 to 16 degrees, or the 20 degree variant for 17 to 24 degrees.
What sonar does the GT15M-THF provide?
It is a mid-band CHIRP traditional transducer covering 85 to 165 kHz at 600 W. It produces the traditional fish-arch and bottom view and supports a water-temperature reading on compatible displays. It does not provide ClearVu or SideVu scanning sonar.
How deep will it read?
Maximum depth is 580 m (1,900 ft) in freshwater and 365 m (1,200 ft) in saltwater, depending on water conditions, bottom type and the connected display.
How does it connect to my chartplotter?
It has an 8-pin connector on a 15 m (50 ft) cable that plugs into a compatible Garmin chartplotter, fishfinder or sonar black box. Garmin auto-detection configures the sonar automatically. Update your chartplotter software when you install it.
