DIY Supplies : ELECTRICALCertification : NONEModel Number : SA-387SMeasure Range: : 0~19.99pptResolution: : 0. 01pptAccuracy: : +/-2%F.SOperating Temperature: : 0~50Temperature Compensation : 0~50Dimension: : 175mm*30mm*22mmWeight: : 67gPower Supply: : 4X15V(AG13)(not included)SA-387S Salinity meter Waterproof Salinometer Halometer Salt Gauge Salty Brine Seawater Food Salinity Tester with retail box 40% offFeatures:Measure Range:0~19.99pptResolution:0. 01pptAccuracy:2%F.SOperating Temperature:0~50Temperature Compensation:0~50Power Supply: 4X15V(AG13)(not included)Dimension:175mm30mm22mmWeight: 67gOperation:1. Remove the protective cap2. Turn the meter on by pressing the ON-OFF button locatedon the top of battery case.3. Immerse the meter in the solution to be tested.Without exceeding the maximum immersion level.4. Stir gently and wait for the reading to stabilize.5. After use. rinse the electrode with water to minimizecontamination.Turn the meter off by pressing the ON-OFF button.Replace protective cap after use.Calibration:Immerse the electrode into the distilled water and activate it about five minuts.Immerse the electrode in the calibration solution(6.44ppt at 25),gently shake it and wait for a stable display.Regulate the timmer with the screwdriver provided until display shows"6.44"at buffer solution temperature of 25.Rinse the electrode with distilled water, and dry it with filter paper.