Thông tin sản phẩm Range PSU 0 to 50 ppt 0 to 150 Specific Gravity (20/20) 1.000 to 1.114 Temperature 0 to 80°C (32 to 176°F) Resolution PSU 1 ppt 1 Specific Gravity (20/20) 0.001 Temperature 0.1°C (0.1°F) Accuracy (@20°C) PSU ±2 ppt ±2 Specific Gravity (20/20) ±0.002 Temperature ±0.3°C (0.5°F) Temperature Compensation automatic between 10 and 40°C (50 to 104°F) Measurement Time approximately 1.5 seconds Minimum Sample Volume 100 µL (to cover prism totally) Light Source yellow LED Sample Cell stainless steel ring and flint glass prism Auto-off after three minutes of non-use Enclosure Rating IP 65 Battery Type / Battery Life 9V / approximately 5000 readings Dimensions / Weight 192 x 104 x 69 mm (7.6 x 4.1 x 2.7”) / 420 g (14.8 oz.)