As a general rule, the products that begin with “SD” are compatible with each other. This means that the SD-2025 Collar is compatible with the SD-3000 Basic Contain ‘N’ Train System, along with the SD-2000 Basic In-Ground Pet Fencing System, and the SD-2100 Rechargeable In-Ground Pet Fencing System.

The restrictions are that the SD-2025 Collar will not work with the Remote Control for the SD-3000, nor is it compatible with the Ultrasmart products.

The Innotek SD-2025 Collar, Compatible with the Innotek SD-3000/2100/2000 Pet Fences is On Sale with Free 2-Day Shipping from Muttfence.com

I am interested in the Innotek SD 2000 basic containment system, but I have two dogs. I see that it says extra collars are available, but I can’t find any that match up to this model number. Where can I find the additional collar? Thanks!

Answer:

There are two receiver collars available for the Innotek SD-2000 Basic In-Ground Pet Fence.  The Innotek SD-2025 Basic Receiver Collar, and the Innotek SD-2225 Rechargeable Receiver Collar. Since you have the SD-2000 fence, we recommend the SD-2025 since the SD-2225 would require the purchase of a collar charging station.