Use the Traceable® Big-Digit See-Thru™ Thermometer outdoors, in storerooms, at fume hoods, labs, clean rooms, refrigerators, and plant areas. May be attached to the outside of a window to view outdoor temperatures. Transparent display with 1-1\/4-inch-high digits show current and minimum\/maximum temperatures. Automatically clears and updates the min\/max readings daily. Range is -13.0 to 158.0°F or -25.0 to 70.0°C with a resolution of 0.1° and an accuracy of ±1°C. Traceable to NIST for accuracy To assure accuracy an individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Supplied with mounting tape, Velcro®, AAA battery, and Traceable® Certificate. Size is 3-1\/2 x 4-1\/4 x 3\/4 inches. Weight is 8 ounces. Replacement battery Cat. No. 1105.