Type J Subminiature Connector Adapter, accepts stranded or solid wire up to 20 AWG with an internal silicone grommet for strain relief and captive cover screws, is color-coded black for J thermocouples according to the ANSI standard
Go Wireless* Exercise Heart Rate, Recommended for College, High School, and Middle School Science, excellent hands-free option for continuously monitoring heart rate before, during, and after exercise or while a person is stationary