SportDog, SD-425X, FieldTrainer 425X
The FieldTrainer 425X is the close-working e-collar — 500-yard range, 21 levels of static stimulation across low and medium ranges, tone and vibration, and no-look dial operation so a handler can make a correction without taking their eyes off the dog. The X-Series transmitter is designed to be read by feel: roll the dial all the way up for tone and vibrate, then feel it click down through each level of static stimulation. If you've lost track of where you are on the dial mid-session, that tactile reset keeps the timing clean without breaking your focus on the dog. Button functions are adjustable — continuous static, momentary static, tone, vibration, and remote beeper locator are all configurable to suit how you train. For dogs 8 pounds or larger with neck sizes 5 to 22 inches. Rechargeable lithium-ion batteries charge in 2 hours with 50 to 70 hours of run time; low battery indicators on both remote and collar. Receiver without strap: 2.60"L x 1.30"W x 1.23"D. Remote with antenna: 5.30"L x 1.70"W x 1.00"D.
Expands to three dogs on one transmitter with Add-A-Dog collars. The exact replacement receiver on an orange strap is the FieldTrainer 425X/SportHunter 825X Add-A-Dog Collar (SDR-AXF). Compatible Add-A-Dog collars:
- FieldTrainer 425X/SportHunter 825X Add-A-Dog Collar (SDR-AXF)
- SportHunter 1225X/1825X Add-A-Dog Collar (SDR-AX)
- WetlandHunter 1825X Add-A-Dog Collar (SDR-AXW)
- HoundHunter 3225 Add-A-Dog Collar (SDR-AH)
- UplandHunter 1875 Add-A-Dog Collar + Beeper (SDR-AB)
- FieldTrainer 425XS Add-A-Dog Collar – For Stubborn Dogs (SDR-AXS)
- Contain + Train Add-A-Dog Collar (SDF-CTR)
- Range - Up to 500 yards
- Stimulation Ranges - Up to 21 levels of static stimulation with low/medium ranges. Option to train with vibration and tone.
- Expandable System - Supports training up to 3 dogs
- Waterproof - Waterproof and submersible to 25 feet using DryTek® technology
- 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
In field training, the unit stays light on the collar, letting handlers focus on dog response rather than gear. This arrangement supports steady communication across cover, open terrain, and damp mornings during upland work. For waterfowl retrieves, the FieldTrainer 425X uses tone and vibration cues to provide non-verbal signals when noise is present. With three-dog expandability, handlers can manage multiple dogs on the move without frequent collar swaps. Keep the transmitter ready by simple, regular charging and by cleaning contact points after wet training days. Dry, mud, and field debris can affect performance, so inspect seals and strap wear between sessions. When training with additional collars, map cues to each dog’s work style for consistent results. In practice, this system supports field trials, breed-specific handling, and reliable recall in rugged conditions. The focus remains on practical application, not gear complexity, ensuring fast transitions during timed retrieves. A compact, durable setup continues to perform when weather, distance, and cover limit verbal cues. Ultimately, operators should confirm that the system remains responsive through daily field use.
SportDog, SD-425X, FieldTrainer 425X Q&A
What range does the FieldTrainer 425X cover, and how does that affect field use?
The system supports up to 500 yards of range, enabling consistent signaling across open terrain and cover.
How many dogs can be trained with this system, and what is required to add another dog?
It trains up to three dogs; additional Add-A-Dog collars allow inclusion of more dogs.
What signaling options are available to tailor training to a dog’s response?
You can use up to 21 levels of static stimulation, plus tone and vibration options.
How should I care for the unit after wet training days?
After wet training days, clean contact points and check seals; store the unit dry and ready for next sessions.
What training contexts is the FieldTrainer 425X suited for?
It is suitable for field training, upland hunting, waterfowl retrieval, and field trials, with breed-specific handling in mind.
What is the battery life and charging requirement?
Rechargeable lithium-ion batteries provide 50–70 hours per charge; a full recharge takes about 2 hours.
How do I operate the device with no-look functionality?
The interface uses a dial and button to deliver tone, vibration, or stimulation without looking at the unit.
Item Specifications
| Brand | SportDOG |
|---|---|
| Model | FieldTrainer 425X |
| Weight | Smallest and lightest e-collar by SportDog |
| Use | In-the-field training or hunting |
| Remote operation | No-look operation |
| Stimulation types | Tone, vibration, 21 levels of static stimulation |
| Compatibility with other collars | Can be used with up to 3 dogs with the purchase of Add-A-Dog collars |
| Range | Up to 500 yards |
| Stimulation ranges | Up to 21 levels of static stimulation with low/medium ranges. Option to train with vibration and tone |
| Expandable system | Supports training up to 3 dogs |
| Waterproof | Waterproof and submersible to 25 feet using DryTek technology |
| 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 |
SportDOG FieldTrainer 425X: Enhance Your Dog Training Experience
The SportDOG FieldTrainer 425X is a highly advanced dog training collar, specifically designed for ease of use and efficient close-working dog training in the field. Experience increased levels of static stimulation, allowing for more customized training options.
The upgraded, matte collar strap ensures comfort and durability for your dog during training sessions. With a range of up to 500 yards and the ability to expand the system to train up to 3 dogs, the FieldTrainer 425X offers unmatched versatility for dog owners.
Say goodbye to battery worries, as this e-collar features rechargeable lithium-ion batteries that charge in 2 hours and last 50-70 hours per charge. The collar is also waterproof and submersible up to 25 feet, thanks to DryTek technology.