Designed for offshore fishing and freshwater anglers. Operating with an operating frequency range of 85-135 kHz.

This CHIRP transducer reveals fish in shallow, murky waters at medium depths (up to 1,500 feet) along with ultra-clear target resolution.

Designed for smaller boats up to 25'.

GENERAL

Garmin TM185M Transducer – High-Performance CHIRP Sonar for Clearer Imaging

Overview

The Garmin TM185M Transducer is a high-frequency CHIRP (Compressed High-Intensity Radiated Pulse) sonar transducer designed for superior depth penetration and target separation. Built for fishing and marine navigation, this transducer operates in the mid-band frequency range (85-165 kHz), offering excellent detail and resolution for identifying fish, bottom structures, and underwater terrain.

Featuring a 600-watt power output, the TM185M provides sharp imaging and clear sonar returns in both shallow and deep waters, reaching depths of up to 1,500 feet (457 meters). The transom-mount design makes it easy to install on a variety of boats, providing reliable sonar performance in freshwater and saltwater environments.

Key Features

• CHIRP Technology for High-Resolution Imaging

  • Operates in a mid-frequency range (85-165 kHz) for better target separation and clarity.
  • Provides detailed fish arches, crisp bottom readings, and improved structure identification.

• Powerful Depth Penetration

  • Delivers accurate sonar returns up to 1,500 feet (457 meters) in ideal conditions.
  • Excellent for deep-sea fishing, offshore boating, and lake fishing.

• 600W Power Output for Reliable Performance

  • Ensures strong and clear sonar signals, even at greater depths.

• Wide Beam Coverage

  • Offers a beamwidth of 16° to 24°, providing a broad scan area for better fish detection.

• Durable, Transom-Mount Design

  • Easily attaches to the transom of a wide range of boats.
  • Built to withstand harsh marine conditions, including saltwater exposure.

• Ideal for Freshwater & Saltwater Applications

  • Works well in lakes, coastal waters, and deep-sea environments.

Technical Specifications

• Operating Frequency: 85-165 kHz
• Power Output: 600W
• Maximum Depth: 1,500 ft (457 m)
• Beamwidth: 16°-24°
• Mounting Type: Transom mount
• Compatible with: Garmin CHIRP-capable fishfinders and chartplotters
• Material: Urethane housing

Ideal Use Cases

• Deep-Sea & Offshore Fishing – Locate fish at greater depths with precise sonar imaging.
• Coastal & Lake Fishing – Enhanced bottom and structure detection for better catch results.
• Recreational Boating – Reliable depth readings for safer navigation.

Warranty & Support

Garmin offers a limited manufacturer’s warranty, covering defects in materials and workmanship. Customers should consult authorized Garmin dealers for detailed warranty terms.

The Garmin TM185M Transducer is an excellent choice for anglers and boaters looking for clear sonar imaging, strong depth penetration, and easy installation. With its advanced CHIRP technology, powerful 600W output, and broad beam coverage, this transducer provides the accuracy and performance needed for successful fishing and safe navigation in diverse water conditions.