**5. Conclusions**

Remote controlled thermal nociceptive threshold testing in cats, dogs, sheep, horses and camels and mechanical threshold testing in horses and camels was well tolerated. It allowed free movement and normal behaviour during testing and resulted in data consistent with wired systems. Remote controlled nociceptive threshold testing is a useful refinement for pain research as the animal can behave normally without restraint or proximity of the tester.

**Funding:** This research received no external funding. **Acknowledgments:** Many thanks are due to Michael Dixon who designed and built the systems and to all the colleagues with whom these data were collected and who provided the animals, facilities, enthusiasm as well as moral support and who gave permission for the data to be reported: Tammy Grubb, Andreas Haga, Sabine Kastner, Peter Kronen, Stelio Luna, Khursheed Mama, Adel Mubarak, Jo Murrell, Gabby Musk, Bob Pigott, Louisa Slingsby and Kirsten Wegner.

**Conflicts of Interest:** Polly Taylor and Michael Dixon are directors of Topcat Metrology Ltd.
