INSTEN LCD Large Screen Digital Indoor Outdoor Centigrade to Fahrenheit Thermometer Hygrometer Meter with Dual Sensors Memory Large LCD screen display. Switchable temperature display: Centigrade to Fahrenheit. One hole and a stand back of the thermometer for easy hanging on the wall or standing on the desk. Indoor and outdoor temperature(min.or max.) and indoor humidity(max.or min.) display. Check the maximum or minimum temperature and humidity by pressing the MAX./MIN. switch. Cable with probe for outdoor temperature and humidity measurement. Internal sensor inside the thermometer for indoor measurement. Memory shows the max. or min. temperature/humidity of the period from the last reset. Outdoor Temperature Range: -40c ~ 70c /-40 F~ 158F; Indoor Temperature Range: -10c ~ 50c /-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). All rights reserved. All trade names are registered trademarks of respective manufacturers listed.