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Dogtra 1902 NCP Field Star Electronic Dog Collar 2 Dog 1/2 Mile Remote Dog Trainer 1902NCP
 
The 1900NCP Field Star with LCD screen is a powerful entry-level pet training, K-9 or sporting dog unit for mild mannered or stubborn dogs.

Fully waterproof, 1/2-mile range
Rechargeable Ni-MH batteries
Low to high power transmitter
Rheostat Intensity Dial that allows for gradual adjustment in stimulation intensity
Stimulation type-Nick, Constant, and non-electrical stimulating Pager/Vibration
LCD screen displays exact numeric level of stimulation clearly and accurately
Tri-color LED Battery Life Indicator

Dogtra Training Collars offers a user-friendly training collars that are designed for the most demanding training conditions. Dogtra offers a complete line of training collars  from small-breed pet trainers to a variety of sporting dog units. Most Dogtra e-collars are fully waterproof both the transmitter and the collar. The 175NCP has a water-resistant hand held transmitter. Dogtra offers a full line of e-collars with different ranges for a variety of uses: 1 mile, 3/4 mile, 1/2 mile and 400 yards.
Receiver and Collar Size:
Dogtra low/medium output units (175, 300, 280 and 7000) have a reduced receiver designed for dogs as small as 15lbs. Dogtra low/high output receivers can be used comfortably on dogs as small as 20 lbs.
Dogtra Stimulation:
Dogtra stimulation uses Exact-Stim, stimulation control offers the precise correction level for every dog's temperament. The Exact-Stim gives you a wide range of stimulation without jumps in between levels. Dogtra offers a pager which is a non-stimulating attention getter where the receiver vibrates to get the dog attention without stimulation. Nick is a momentary rapid burst of stimulation to get your dogs attention. Constant stimulation is on as long as you hold the button down and is used for demanding training situations or for stubborn dogs.