Smith Root LR-20B Backpack Electrofisher w/ LI-ION Batts, Gloves - Exceptional condition!

Smith Root


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Easy to use controls

Quickly configure your electrofisher and get to work.

Select an output frequency from pre-defined increments and duty cycle for complete control. Straight DC output and gated burst output are also selectable.

LCD display

See real-time status of your electrofishing effort

Waveform settings
Output voltage
Output current
Fuel gauge style battery status
Electrofishing output time
Electrofisher internal temperature


Operator safety is a primary concern in the design of Smith-Root electrofishers. Tilt sensor, water immersion sensor, and cover open sensor will automatically shutdown the electrofisher. A power output audio alarm and flashing light let all members of the collection crew know the electrofisher is active.

Packframe and Suspension

Adjustable suspension harness and packframe can be customized to fit most people. Quick release latches allow the LR-20B to be removed quickly if the operator falls or becomes injured.


The LR-20B uses the same electrode, cathode, and battery connectors as the LR-24 and Apex backpack electrofishers. This will increase your flexibility in large field operations and increases the versatility of your inventory of electrofishers.

LR-20B Electrofisher Specifications

Output Power 400W continuous, 39,600W peak
Output Voltage 50 to 990V in 11 steps (50 to 400V in 50V steps, 500V, 700V, 990V)
Output Frequency 10 to 120Hz in 16 steps (10 to 50Hz in 5Hz steps, 50 to 120Hz in 10Hz steps)
Duty Cycle 5 to 50% in 5% steps, 60 to 80% in 10% steps, Gated Burst 2 pulse, Gated Burst 3 pulse, DC
Overload Protection Automatic electronic and 40A safety fuse, High output current, Output voltage out of regulation, Over temperature
Safety Features Emergency shut off switch, Output active super-high brightness red LED, Output active audio alarm, Output off immersion sensor, Output off tilt sensor, High output current protection, Pole mounted output control switch, Electrode out-of-water shut down sensor, Non-conductive lightweight pack frame, Quick release harness
Timer 6 digit computer controlled seconds counter
Metering Mean current, Peak output voltage, Average output power, Battery voltage, Battery current, Battery fuel gauge, Timer
Battery Choice of 24V lithium or lead-acid batteries
Size and Weight Height: 21 in.
Width: 15 in.
Depth: 9 in.
Weight: 17.8 lb. (8.07 kg) without battery or accessories



Exceptional condition!  Appears to have never been put into service.  Comes with (3) pairs of rubber gloves, and upgraded Lithium Ion battery packs.


  • Smith Root LR-20B Backpack Eletrofisher - Complete !
  • Two sets of Lithium Ion battery packs
  • (3) sets of 9 1/2 size rubber gloves (2021 and 2020 test dates)
  • UBC 24 Universal battery charger
  • Operator manual
  • Rugged, weatherproof case with wheels



30 Day warranty. We pledge to offer the best service and warranty to all of our customers!  We are extending a 30 Day warranty on this item. This is our way of saying thank you for allowing us to serve you.


This is a genuine product from this manufacturer.


Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by bidding on this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. it is the purchaser's responsibility to have the item inspected and certified by a qualified professional before use!  Furthermore, buyer hereby agrees prior to purchasing this, that they have verified its lawful use in their jurisdiction.  Buyer agrees this equipment will only be used per the manufacturer's safe instructions for use and where allowed under all federal, state and local laws governing the use of such product.  Compliance with all regulations is the sole responsibility of the buyer.  Buyer shall indemnify and hold seller harmless from any and all damages that are suffered or incurred by the buyer, in whole or in part, from time to time, and arise as a result of: (A) any breach of the covenants, warranties or representations of this agreement or the terms of sale by buyer; or (B) Buyer’s ownership and utilization of the equipment on and after the sale date.