Reed SW700 Heat Stress Stopwatch

The SW700 Heat Stress Stopwatch manufactured by Reed Instruments is a highly-versatile, inexpensive digital stopwatch that is ideal for use by athletes, gym goers, personal trainers and fitness coaches.

The SW700 stopwatch comes complete with lap split memory, lap count and lap recall for monitoring performance, as well as a 10-hour countdown timer and built-in calendar that displays day, month and date.

The device is IPX4 water-resistant, battery and solar powered, and has the ability to measure temperature, humidity, heat index and dew point. This digital stopwatch combines air temperature and relative humidity measurements in an attempt to determine the human-perceived equivalent temperature.