• FieldTrainer® 425S

The FieldTrainer® 425S 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. Specifically for stubborn dogs, the SD-425S has a higher range of stimulation than the SD-425. Ideal for training in the yard or field, or for hunting with close-working dogs, the SD-425S allows you to switch instantly between 7 levels of medium/high stimulation, as well as train with vibration and tone options


  • Range - Up to 500 yards
    Stimulation Ranges - 7 instantly selectable static stimulation levels with medium/high 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
  • 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


  • 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


SDR-AS FieldTrainer® 425S 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® 425S

  • Brands SportDog
  • Product Code: SD-425S
  • Availability: In Stock
  • $179.95

Available Options

Tags: up to 500 yards, 7 levels-stimulation, up to 3 dogs