Silverline 675133 Indoor/Outdoor Thermometer -50?C to +70?C - SIL675133
Twin display thermometer, measures in Celsius and Fahrenheit. Indoor and outdoor sensors. Indoor temperature range -10?C to +50?C (-14?F +122?F) and outdoor temperature range -50?C to +70?C (-58?F +158?F) displayed on a large LCD display. Requires 1 x AAA battery (not included).