SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-ABNo risk to you. Your 100% Satisfaction is Guaranteed with our 30 Day "No Questions" Money Back Guarantee. Hassle-free returns & exchanges.  Original extra collar / beeper for the SportDOG SD-1875. Includes 3/4" collar strap that fits up to a 23" neck, charger, short and long contact points, and charging cradle. Not Compatible with SD-1850 systems. Compatible with the Following Systems: Synchronizing a Replacement Collar Receiver to your Transmitter1. Turn the Collar Receiver off.    How to Program the Collar for Two-Dog Operation with the SD-1875 1. Program the Remote Transmitter to modes 1 - 6. (Consult the SD-1875 Owners Manual for more information on Transmitter Modes.) 
B. Turn the Remote Transmitter over.  D. When the mode button is pressed, the Transmitter Indicator Light will be solid in color. When it is released, it will flash the same number of times as the mode selected.
3. Program the second Collar Receiver the same way using A through D above, but with the toggle switch to the black/down position. How to Program the Collar for Three-Dog Operation with the SD-1875 1. Program the Remote Transmitter to mode 5. (Consult the SD-1875 Owners Manual for more information on Transmitter Modes.) 
B. Turn the Remote Transmitter over. D. When the mode button is pressed, the Transmitter Indicator Light will be solid in color. When it is released, it will flash the same number of times as the mode selected. 2. Program the first Collar Receiver:
3. Program the second Collar Receiver using A through D above, but using the Lower Button in place of the Upper Button. 4. Program the third Collar Receiver using A through D above, but using the Side Button in place of the Lower Button.
Customer ReviewsReview Summary
4.7
7 Reviews
5
71.43% (5)
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28.57% (2)
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100% Recommend this product (7 of 7 responses)
By Anonymous
Fayetteville Arkansas
Extra collar
September 24, 2021
Collar works great needed a second collar for my upland system since I have more then one dog now.
By Tara P.
Story City Iowa
Great collar - repeat purchase!
September 3, 2020
This is our family's 5th purchase of a SportDog SD-1875 collar. We own a hunting preserve and these collars get a daily work out! This recent purchase replaces the first collar that we purchased 6 years ago.
Pros
By Robert K.
NJ
Review for SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-AB
November 8, 2016
It replaced the one I drove over and crushed that came with my SD1875. Loved the one I drove over and love this one also. Your prompt service is greatly appreciated!
By Earl
Oklahoma
Review for SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-AB
September 27, 2015
Pros: Working range is good. Transmitter buttons, knobs, and switches work great and do not require viewing a display like others.Cons: Big difference in intensity between 2 and 3 on the intensity dial. Apparently SportDOG is aware of this, as the tech service rep indicated it is a known issue.Beeper is extremely load. Solution - zip tie and a piece of latex (like from a surgical glove). One or two layers makes it about right. Overall: Better than other e-collars I have used. Must have liked it, as I now have two.
By Kurt Z.
WI
Review for SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-AB
July 29, 2015
I have had this system for years and really like it. Recently got new dog. Needed another collar. Purchased the add on, programming simple. Had a problem with the locator beeper not responding and/or losing it's programming right away. Contacted Sportdog. Without hesitation they sent a replacement beeper locator along with prepaid sticker to ship the defective one back. New one works perfect. Note: have never had a single problem with my original collar setup. Great product and support.
By Lincoln H.
WA
Review for SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-AB
December 30, 2013
I love the ability to have my dogs working with one remote and the same settings. The instructions, however, do not make the transition from one dog to two dogs very easy. Videos help but could be better. The section on how the settings work is very confusing, and I still struggle with them. Overall. I fumbled through it and love how it works. I'm also not totally happy with the remote beeper. It should shut off quicker when the dog moves. None the less. It's a very good tool. My dogs and I have responded to it well. In the field. My dogs react just as I have trained them. And I couldn't control them without this tool.
By Michael S.
Review for SportDOG SD-1875 Add-A-Dog Additional Collar / Extra Receiver SDR-AB
December 3, 2013
Nice fitting collar. Both dog go wild when they see me pull the collars out knowing that there going hunting. I bought these's collars based on being Steve's top pick. I'm glad I listened to Steve.
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