Handheld Aquarium Refractometer 0-10% 1.000-1.070SG Sea Salt Water Concentration Mariculture Breeding Gravimeter Tester Monitor

0-100% Salinity Refractometer Aquarium ATC Refractometer 1.000-1.070SG Salinity Seawater Tester Salinometer For Aquarium

Feature: Measuring Range : w/w 0-10% 1.000-1.070SG Minimum Divisions : w/w 1‰ Accuracy : ±1‰ Length : 18CM

How to Use 1. Align the Cover Plate with light, adjust the Focus Adjustment until you see the scale clearly. 2. Calibration: Accurate Measurement depends on careful calibration. Please make sure the ambient temperature is about 68 °F, distilled water can be used to calibrate. Open the Cover plate. place 2-3 drops of the distilled water on the prism, then close the cover plate and make sure the water spread aross the prism without any air bubbles or dry spots. wait for about 30 seconds to let the reading to stabilize. Look into eyepiece and turn the calibration screw until the reading is 0 3. Clean the prism with soft cloth, then place 2-3 drops of the liquid sample to be tested on the prism.then close the cover plate and make sure the water spread aross the prism without any air bubbles or dry spots. wait for about 30 seconds to let the reading to stabilize. Align the prism assembly with the light source. look into eyepiece and you can get the reading. 4. Please leep the refractometer dry and clean in the box, which can make sure the reading accuracy and durable. ​ Package Content: 1 x Refractometer 1 x Pipette 1 x Screw driver 1 x Cleaning cloth 1 x English Instruction manual 1 x Carrying bag