Fundamental and pharmacological studies in pain require nociceptive threshold testing (NTT) to detect increases or decreases in sensitivity to a noxious stimulus. Thermal and mechanical sensitivity testing is very widely used in such research, and rodents, primarily mice, are the most common species studied. Testing with von Frey filaments and hot plate technology, principally the Hargreaves system, are currently the accepted methods for mechanical and heat testing respectively. However, these have a number of scientific and animal welfare limitations.