Garmin
Garmin Airmar TM185M Transducer
£1,319.99
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010-12810-20
The Garmin TM185M is a 1 kW transom-mount CHIRP transducer on a single 85-135 kHz medium band. It sounds to 1,500 ft with a wide 16-11 deg beam and works with a built-in 1 kW CHIRP sounder or a GSD 26 / GSD 25 module.
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Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin TM185M is a 1 kW transom-mount CHIRP transducer that works on a single medium band of 85 to 135 kHz, covering the popular 88 and 107 kHz fishing frequencies plus everything in between for 50 kHz of bandwidth. The medium frequency strikes a balance between depth and resolution, sounding deeper than a high-frequency transducer while keeping a wider 16 to 11 degree beam for more coverage under the boat.
With 1 kW of transmit power the TM185M sounds to 1,500 ft, making it well suited to shallow and mid-range offshore and freshwater fishing. It mounts easily on the transom using its stainless-steel bracket, suiting transom angles of 3 to 21 degrees on boats up to 10 m. An integral depth and fast-response temperature sensor is built in. The TM185M runs on Garmin chartplotters with a built-in 1 kW CHIRP sounder, or through the Garmin GSD 26 or GSD 25 sonar module.
PRODUCT DETAILS
- Transom-mount broadband CHIRP transducer on a single medium band of 85-135 kHz
- 1 kW of transmit power with 50 kHz of bandwidth, covering the popular 88 and 107 kHz frequencies plus everything between
- Medium frequency balances depth and resolution with a wider 16-11 deg beam for more coverage under the boat
- Sounds to 1,500 ft, ideal for shallow to mid-range offshore and freshwater fishing
- Easy transom installation on a stainless-steel bracket, for transom angles of 3 to 21 deg on boats up to 10 m (32 ft)
- Integral depth and fast-response water-temperature sensor
- Runs on Garmin units with a built-in 1 kW CHIRP sounder, or via the GSD 26 or GSD 25 sonar module
- TM185M transom-mount transducer with 12 m (39 ft) cable
- Stainless-steel bracket and mounting hardware
- Installation instructions
No exploded diagram available for this product.
No compatible transducers listed for this product.
No spares or accessories listed for this product.
Sonar
| Sonar type | Broadband CHIRP, single-band Medium |
| Frequency – Medium band | 85 to 135 kHz (covers the popular 88 and 107 kHz frequencies plus everything in between) |
| Total bandwidth | 50 kHz from one transducer |
| Transmit power | 1 kW |
| Maximum depth | 457 m (1,500 ft) |
Beam
| Beamwidth – Medium band | 16 to 11 degrees |
Mounting
| Mount type | Transom mount, with stainless-steel bracket |
| Transom angle | 3 to 21 degrees |
| Recommended boat size | Up to 10 m (32 ft) |
Physical
| Housing material | Plastic / urethane housing with stainless-steel transom bracket |
| Weight | 4.2 kg (9.2 lb) |
| Temperature sensor | Yes – depth and fast-response water-temperature sensor |
Connectivity
| Connector | 8-pin Garmin |
| Cable length | 12 m (39 ft) |
Compatibility
| Compatible sounders | Works with Garmin chartplotters that have a built-in 1 kW CHIRP (medium) sounder (GPSMAP xsv series), or via the Garmin GSD 26 or GSD 25 sonar module. |
General
| In the box | TM185M transom-mount transducer with 12 m (39 ft) cable, stainless-steel bracket, mounting hardware and installation instructions |
No videos available for this product.
What frequency does the TM185M use?
It is a single-band medium CHIRP transducer sweeping 85 to 135 kHz, covering the popular 88 and 107 kHz frequencies plus everything in between, with 1 kW of transmit power.
Why choose a medium-frequency transducer?
Medium frequency balances depth and resolution. It sounds deeper than a high-frequency transducer while keeping a wider 16 to 11 degree beam, giving more coverage under the boat and clear images at higher boat speeds.
Does the TM185M need a separate sonar module?
Not necessarily. It runs directly on Garmin chartplotters that have a built-in 1 kW CHIRP sounder, such as the GPSMAP xsv series. Where there is no built-in 1 kW sounder it can be driven by the Garmin GSD 26 or GSD 25 sonar module.
How deep can the TM185M sound?
It sounds to approximately 1,500 ft, depending on water conditions, which suits shallow to mid-range fishing.
How is the TM185M mounted?
It mounts on the transom using its stainless-steel bracket, suiting transom angles of 3 to 21 degrees on boats up to 10 m (32 ft).
