LUR-1 Digital Display Medical urinometer Product Specifications: Model: LUR-1 Medical urinometer measuring range: 0 ~ 12g / dl serum protein specific gravity 1.000 ~ 1.050sg 1.3330 ~ 1.3900ND refractive index of the smallest scale: 0.1g / dl serum protein 0.001sg specific gravity 0.0003ND refractive digital salinity meter Details: 1. Temperature measuring range: 0 ℃ -40 ℃ (32 ℉ - 104 ℉) 2. Temperature measurement accuracy: ± 0.5 ℃ (2 ℉) 3. Temperature measurement accuracy: 0.1 ℃ (1 ℉) 4. Operating temperature range: 0 ℃ -40 ℃ (32 ℉ -90 ℉) 5. Storage Temperature: 0 ℃ -50 ℃ (32 ℉ -122 ℉) 6. Dimensions: 135 × 65 × 40mm 7. Weight: 200g 8. Power: 2 × AAA (1.5V) 9. Battery life: more than 10,000 times 10. 11. energy-saving design of automatic temperature compensation (automatic shutdown) 12. Fahrenheit in Celsius temperature conversion 13. Battery Replacement Tips