Features: 1. Temperature measurement range: 0-40(32¨h - 104¨h) 2. Precision ¨h measurement temperature:¡à1(2¨h) 3. Measurement temperature resolution: 1(1¨h) 4. Operation temperature:0 ¨c35(32¨h-90¨h) 5. Storage temperature: 0 ¨c50(32¨h-122¨h) 6. Dimension:135¡á65¡á40mm 7. Weigh:200g 8. Power supply: 2¡áaaa(1.5v) 9. Operating time: more than 2000 times per battery 10. Automatic temperature compensation 11. Automatic shut ¨h 12. Conversion between centigrade and fahrenheit degree 13. Alarm ¨h low voltage Propylene glycol Range: 0~50 Accuracy: 0.1 Divisions: 0.1 Ethylene glycol Range: 0~-50 Accuracy: 0.1 Divisions: 0.1 Battery Range: 1.00~1.50sg Accuracy: 0.01sg Divisions: 0.01sg Cleaner Range: 0~-40 Accuracy: 0.1 Divisions: 0.1.