Item Description Large LCD screen display for easy readouts of the humidity and temperature. Switchable temperature display for easy using: Centigrade to Fahrenheit. Indoor and outdoor temperature(min.or max.) and indoor humidity(max.or min.) display. Cable with probe for outdoor temperature and humidity measurement. Internal sensor inside the thermometer for indoor measurement. Ideal household decoration for ensuring you the most desirable ambient temperature and humidity. Check the maximum or minimum temperature and humidity by pressing the MAX./MIN. switch. Memory shows the maximum or minimum temperature/humidity of the period from the last reset. Considerate design for installation: one hole and a stand back of the thermometer for easy hanging on the wall or standing on the desk. Outdoor Temperature Range: -40°C ~ 70°C / -40°F ~ 158°F. Indoor Temperature Range: -10°C ~ 50°C / -58°F ~ 122°F. Humidity Range: 25% RH ~ 98% RH. Dimension: 125 mm x 70 mm x 18 mm. Weight: 92g. Cable length: 1.5m. Powered by one AAA battery (Not Included). Accessory ONLY; battery not included.