BATTERY INCLUDED - A Panasonic #CR2025 lithium battery is included and is easily replaceable. Remove battery tab before turning on device for the first time. TWO MODES - Press button once to turn on/off the device. Hold the button for three seconds to switch between Fahrenheit and Celsius. ULTRA COMPACT - Measuring only 1.9" long and 1.2" wide, Digital Zipogage is the most compact, lightweight personal digital thermometer available. Extremely useful in any indoor or outdoor setting and clips right on to your keychain or zipper for any jacket, pack, parka, or bag. OPERATES IN SUPER-COLD TEMPERATURES - The battery and LCD in Digital Zipogage were engineered to operate in temperatures as low as -20° Fahrenheit (-30° Celsius). Max operating temp is 130°F (54°C). This is a colder low-end operating temperature than any other digital personal thermometer on the market. A great addition for any camping, hiking, or snowsport gear. EASY TO READ - Digital Zipogage comes equipped with a large easy-to-read LCD display.

Response Time: 3 seconds. Upper Temperature Rating: 54 Degrees Celsius. Item Length: 1.2 inches. Number of Batteries: 1 CR2 batteries required. Power Source: Battery Powered. Unit Count: 1.0 Count. Display Type: LCD. Age Range (Description): Adult. Color: White. Brand: Sun Company. Best Sellers Rank: See Top 100 in Sports & Outdoors. : B07KMMJPCZ. Manufacturer: Sun Company. Date First Available: November 16, 2018. Batteries: 1 CR2 batteries required. (included). Item model number: 404. Product Dimensions: 1.2 x 0.35 x 1.9 inches; 0.6 Ounces. Is Discontinued By Manufacturer: No.