I have used HOLOHIL transmitters for many of my projects over the years. We first used them for our spatial studies of Eastern Massasaugas and found their implantable transmitters to be far superior compared to other manufacturers. We were so impressed with the longevity of their transmitters we have since used them on our Blanding’s Turtle and Alligator Snapping Turtle projects. Both Fred and John are a pleasure to work with and chat with at the conferences. They show great knowledge of their products. John has been great to work with and planning an order with him has been a breeze.

Superior Quality Transmitters
Michael J. Dreslik
Illinois Natural History Survey