Product information Inside temperature: 0 - 60 / 32 - 140 Outside temperature: -40 - 60 / -40 - 140 Resolution: 1% Size: Hygrometer: 6 * 7.5 * 2 cm, 47 g External sensor: 5.5 * 2.5 * 7.5 cm, 36 g Package included: 1 * inside outside thermometer hygrometer 1 * outside sensor 1 * user manual Big; & amp; Clear LCD Screen - With Super Large & amp; Clear LCD, easy to read temperature and humidity values. Ideal for interiors such as bedrooms, kitchens and living rooms, etc. Max & amp; Min display - The device shows the maximum and minimum of temperature and humidity. Easy to check subtle temperature and humidity changes daily. C / F switch - A button on the back of the thermometer. Briefly press to switch from Celsius to Fahrenheit. Long press to clear Max / Min temperature values. Portable Design - Table Stand, Hanging Hole & amp; Magnetic back design, is convenient to place anywhere in your home. "