Extech HW30 HeatWatch Humidity Temperature Stopwatch Timer is a multi-functional timing device that features a user selectable Heat Index Alarm and measures temperature and humidity. This HeatWatch humidity temperature stopwatch displays temperature, humidity, and heat index.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
