Ferris Battery Monitors

The Ferris Battery Monitor systems have virtually identical functions to the old Link monitors, however the FBM's are provided with all of the wiring in a simple plug 'n' play format. This makes the FBM, the most complete and the easiest battery monitor to install of any available. The FBM-1 provides full battery readings for the house battery bank. The FBM-2 provides the same full battery readings for the house bank, plus an additionl voltage reading for the starting battery. At only 1.5" in depth, the FBM's fit perfectly in the tightest of installations. All FBM's will automatically adjust to read 12, 24 or 48 volt batteries, and they will monitor up to 10,000 Amp/hours!

The FBM Provides All of These Functions:

  • Battery Bank Voltage
  • Amps In or Amps Out
  • Wattage Rating of Power In or Out
  • Amp/Hours Consumed
  • Percent of Charge
  • Time Remaining
  • And Much More!


Includes: Monitor, Shunt, Fuse, 25ft of cable, & our exclusive "Quick-Start Guide!"   



In addition to our Ferris Battery Monitor product line, we now offer a complete line-up of "Power System Monitors" using the FBM's in various pre-packaged, panel mount formats.

If you want a classy looking, "easy on the eyes" display of 2 Ferris Battery Monitors in a professional panel mount design, check out the NEW "Power System Monitors".

See POWER SYSTEM MONITORS under the BATTERY MONITOR heading of the nav bar.

Description Dimensions Ship Wt. Price
FBM-1 1-Bank Ferris Battery Monitor 2.5" x 1.5" 6 lbs. $169.00
FBM-2 2-Bank Ferris Battery Monitor 2.5" x 1.5" 6 lbs. $249.00
Weatherproof PVC Box Mount For Damp Locations 4 x 4 x 2" 3 lbs. $49.00
Pre-Programming Monitor Programming Service $39.00















Special Offers

Sign up for E-mail updates for our SPECIAL OFFERS & SALE ITEMS!



Use our FAQ's to get answers to your questions! Don't see the question? Send it to us and we'll answer it!

view faqs

Professional Services

  • Power Surveys
  • Consultation
  • Design
  • Repair
  • On-Board or On-Site Evaluation
  • Powerboats and Sailboats
  • RV and Mobile Vehicles
  • Homes and Remote Sites
view services

Product Installation Services

  • Sail and Powerboats
  • Homes and Remote Sites
  • RV and Mobile Vehicles
view services