Marcum M3 Flasher System

The M3L is still built on the foundation of MarCum’s very first sonar. A workhorse of the lineup, the M3L exhibits many of MarCum’s patented features such as moveable zoom anywhere in the water column – a key angler advantage that put Marcum on the map. MarCums for the past two decades have been sought after for moveable zoom alone, as it’s this patented feature that forever changed the icescape. With the ability to move through zoom anywhere in the water column. The unit excels for both bottom dwellers such as walleye, to suspending fish like bluegill, crappie, and lake trout. Crosstalk between flashers exists when multiple units are in close proximity, and the Marcum’s noise-cancelling interference rejection system is so good at removing that clutter, it’s patented. This is true for sonar systems in the 200kHz band, as well as other frequencies, covering all bases on ice.


Uses a lightweight, long-lasting LiFePO4 lithium battery. This shaves a significant amount of the weight from the entire system, ensuring both angler AND flasher never run out of juice. Lithium technology is easy on the pocketbook too. By offering a lower cost of ownership as well as by extending the life and use of any Marcum for thousands of charge cycles. The M3L is sold complete, including a deluxe-pad soft case that provides years of protection in transit as well as in use. Marcum’s M3L is the rock of our lineup, built on decades of successful sonar deployment, and also modernized for the most demanding anglers on ice.


  • Display – TrueColor patented MBC Brushless Lighting
  • Power – 2000 Watt Peak to Peak Output Power
  • Cone Angle – 20 Degree Ice Transducer
  • Target Seperation – Down to 1-Inch
  • Interference Rejection – Patented 12-Step
  • Zoom – Patented Infinitely Adjustable Zoom (Zoom anywhere throughout the water column)
  • Cable – 8 ft. Transducer Cable
  • Additional Features – Selectable Depth Ranges: 20′, 40′, 80′, as well as 160′

In the Box:

  • Battery – Rechargeable 12-volt 10-amp Lithium LiFePo4 Battery
  • Charger – 3-amp Hour Rapid-Charge Battery Charger
  • Storage – Deluxe Padded Red Soft Pack
  • Warranty – Two Year System Warranty

Check out more Marcum Ice as well as their Accessories here.