REED Instruments Heat Stress Stopwatch

This water resistant (IPX4) stopwatch features a 10-hours countdown timer and built-in calendar that displays-day, month and date. The SW700 is battery and solar powered and has the ability to measure temperature, humidity, heat index and dew point. This stopwatch combines air temperature and relative humidity measurements in an attempt to determine the human-perceived equivalent temperature or how hot it feels.

• Measures temperature, humidity and calculate heat index
• Built-in calendar displays day, month & date for convenience
• Battery powered with 10 hours countdown timer