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Tri-Tronics G3 Sport Upland Electronic Dog Collar is field expandable to control up to three dogs (additional collars purchased separately).

10 levels of momentary and 10 levels of continuous stimulation
Transmitter remotely operates accessories including the Beeper and Tracer E-Collar Light
Consistent 1/2 mile range
Waterproof Transmitter and Receiver
Allows easy one-hand operation without taking your eyes off your dog
Stimulation dial allows quick and easy stim level changes
8 second safety cutoff on all stim levels
A no-stim ""N"" setting to avoid accidental stimulation
1 ½ in fixed Transmitter antenna with enhanced performance eliminating lost or broken antennas
Multi-Dog selection switch colors match collar strap colors to identify dogs being stimulated
Compact, tough, and dependable Receiver
Easy to access Receiver on/off switch
Insulated contact points for reliable performance in wet conditions
Interchangeable long and short contact points for different coat thicknesses
Stainless steel contact points minimize neck irritation on the dog
Proprietary charging system allows indefinite charging without damage and a full charge in two hours
Charging Cradle eliminates need for jack or plug on Receiver
Lanyard for Transmitter included
Battery life indicator on Transmitter and Receiver so you know when to charge the system or replace the battery
Long lasting rechargeable, user replaceable, NIMH batteries for Receiver and non-rechargeable, user replaceable 9 volt battery for Transmitter.

Tri-Tronics was founded in 1968 they are committed to designing, manufacturing and selling only the highest quality, most durable, reliable and easiest to use electronic dog training collars in the world. Tri-Tronics has pioneered many feature that are now industry standards including: Insulated contact points, momentary and continuous stimulation, the use of tone, multi-dog capability, one-hand operation, quick charge two-hour charge and trickle charge, remote operation of accessories.
The Constant leadership in the industry has made Tri-Tronics the standard by which all e-collars are judged. Every Tri-Tronics product undergoes extensive function testing to verify that it meets or exceeds the standards that Tri-Tronics customers have come to expect and demand.