I purchased this last year, but I never used it and stored it at home for about a year. Digital Thermometer (White LED) Marble-Style Easy-to-read white LED display Display Method: LCD Digital Measurement Range: -50°C to 300°C Measurement Accuracy: ±3°C or ±3% of the displayed value, whichever is greater Operating Temperature Range: 10°C to 50°C Batteries Used: LR44 (alkaline button battery) x 2 Auto-Off: Approximately 5 minutes Materials: Body/Cap: ABS resin (heat resistance 70°C) Cap Tip: Silicone rubber (heat resistance 220°C) Metal Part: Stainless steel *Batteries are not included. Please be aware of this.