• FieldTrainer® 425

The FieldTrainer® 425 takes the most advanced, industry-leading technology that SportDOG® has ever built into its e-collars and packaged it up in the most compact system ever offered. Ideal for training in the yard or field, or for hunting with close-working dogs, the SD-425 allows you to switch instantly between 7 levels of low/medium stimulation, as well as train with vibration and tone options.


  • Range - Up to 500 yards

  • Stimulation Ranges - 7 instantly selectable static stimulation levels with low/medium stim ranges.  Option to train with vibration and tone

  • Expandable System - Expandable to 3 dogs

  • Waterproof - DryTek® waterproof and submersible to 25 feet

  • Dog Size - For dogs 8 pounds or larger with neck sizes 5" - 22" 

  • Batteries - Rechargeable lithium-ion batteries. Charge in 2 hours, last 50-70 hours per charge

  • Low Battery Indicator - Yes

Contents -

Remote Transmitter
Receiver on 3/4" Collar Strap
Charging Adaptor
Standard Contact Points
Long Contact Points
Test Light Tool
Operating Guide
Basic Training Manual & DVD

Product Dimensions - Receiver without strap - 2.60"L X 1.30"W 1.23"D.  Remote Transmitter with antenna - 5.30"L X 1.70"W X 1.00" D


SDR-AF FieldTrainer® 425/SportHunter® 825 Add-A-Dog® Collar
Replacement Transmitter (SD-425 & 425S)
Charging Adaptor (SD-425 Series & 825)
Transmitter Battery Kit (SD-425 Series)
Receiver Battery Kit (SD-425 Series & 825)
Long Contact Points
Standard Contact Points

FieldTrainer® 425

  • Brands SportDog
  • Product Code: SD-425
  • Availability: In Stock
  • $169.95

Available Options

Tags: compact, up to 500 yards, 7 levels-stimulation, dog obedience