New Design Salinity Refractometer 0 10% With ATC Aquarium Salt Hydrometer Built In Calibration Knob

Operation procedures 1. Open the cover and clean the detection prism with a soft cloth. 2. Take the test solution, place it on the detection prism, gently close the lid to avoid air bubbles, make the solution spread on the surface of the prism, and place the instrument on the light plate. 3. Align the light source or bright area, observe the field of view through the eyepiece, and rotate the eyepiece to adjust the handwheel. 4. Clarify the blue-white boundary of the field of view, and the scale value of the boundary is the concentration of the solution. Align the prism assembly with the light source, look through the eyepiece and you can get the reading. Salinity from 0 to 10%, scale 0.01%. Adjust the focus by rotating the handle. Soft and flexible eyepiece for added comfort. Seawater refractometer measures salt water or water salinity, ideal for aquariums, marine monitoring, fish keeping, salt pools and spas, etc. Calibration Accurate measurement based on careful calibration, calibrate the refractometer before first use. During the normal temperature (50℉ to 86℉), you don't have to calibrate it frequently, once every few months is ok, but during the temperature below 50℉ or above 86℉, we still recommend you recalibrate it before using it to ensure the best precision. It can also be used for medical institutions and university research. Speciation: Salinity: 0 ~ 10% Study accurately : 0.01% Size: (diameter) x (height) 19 x 4 cm / 7.48 x 1.57 inches (approx. [ MEASUREMENT RANGE ]: 0 to 10% salinity, 0.01% Study accuracy. [ STRUCTURE & DESIGN ]: Copper construction, main prism + daylight plate + calibration screw + rubber grip + focus adjustment + eyepiece. You can adjust the prism when you can not see scale clearly. The Soft rubber eye piece makes you have a comfortable viewing. [ WIDE USAGE ]: the salinity refractometer can test the concentration of salt water, for aquarium marine monitoring in scientific research and clinical laboratories. [ FULL KIT ]: 1 x Storage Case with Inner Protective Tray, 1 x Salinity Refractometer, 1 x Mini Screwdriver, 1 x Cloth, 1 x Pipette, 1 x Instruction Manual.