Digital thermometer with external sensor allow accurate measurement of temperature inside devices (such as refrigerator, computer, etc.) or even outside the room. The sensor is connected to the display unit via a 3-feet (90 cm) cable. It can be mounted/ inserted in different ways. Has a large, easy-to-read display. Unit of measurement: celsius. Temperature Range: -10 to +120 Celsius (equal to 14 ~ 248 Fahrenheit) Product Dimension:48 x 29 x 13 mm Power-supply: 1.5V (AG13) x1Minimum Order Quantity is 3. Bulk discounts apply to orders of 10 and more. See Quantity Discounts.