THERMO , Precision RTD digital thermometer 1. NIST Certified 2. Includes calibration certificate 3. Includes insertion probe 4. Pt100 Platinum according to EN 60751 5. Range -100° to 300°C & -140° to 570°F 6. Accuracy ±0.2°C -30° to 110°C & ± 0.5°C below -30°C & ± 0.4°C above 110°C 7. Resolution: 0.1°C & F 8. Records minimum, maximum & average temperatures 9. Temperature hold function 10. Waterproof 11. Backlight 12. Display: 7 Segment LCD 13. Power: 3 AAA Batteries, included 14. Dimensions: 6” x 2-½” x 1-¼”