The large display of the ActiveAir Thermometer with Hygrometer shows current temperature and humidity levels. Records high and low points and includes a 3 meter waterproof remote probe for a second zone temperature.
Indoor Temperature: 14°F to 122° Fahrenheit (-10°C to 50°C)
Outdoor Temperature: -58°F to 158° Fahrenheit (-50°C to 70°C)
Indoor Humidity: 25% RH to 98% Relative Humidity
Mount the unit outside your grow room and run the sensor probe into the garden. This will allow you to check readings without having to enter the actual growing area.