This thermometer monitors temperature, humidity, dew-point, and wet-bulb. Displays current conditions along with minimum, and maximum readings. Settable high/low alarm for all four readings (dew-point, wet-bulb, humidity, temperature) may be set in 0.1 increments, and will sound for one minute and red LED will Flash until readings return to non-alarm condition. What's included: nist-traceable certificate and one AA battery audible and visual alarm indicates If any set point has been exceeded adjustable stand allows for wall mounting or desktop placement can be switched from Fahrenheit to Celsius nist-traceable certificate included