Indoor temperature measurement range from -14°F to 122°F (-10°C to 50°C). Weather forecast function with 5 modes: Sunny, Partly Sunny, Cloudy, Rain, Snow. Indoor and outdoor humidity range of 1%-99% . Outdoor temperature measurement range from -40°F to 140°F (-40°C to 60°C). Low battery indicator for both the main unit and outdoor sensor to prevent device communication interruption, along with a plant indicator for seasonal changes and a temperature trend function., Manufacturer: Akfldms