DIY Supplies : ELECTRICALCertification : NONEModel Number : SA-1397SSalinometer Halometer : Salt Gauge Concentration MeterSalinity: : 0- 19.99pptTemp : 0~50Salinity Resolution : 0.01pptTemp Resolution : 0.1Operating Temperature: : 0~50Temperature Compensation: : 0~50Weight: : 98gSA-1397S Salinity & Temp meter Portable Salinity Meter Salinometer Halometer Salt Gauge Concentration Meter 40%offSpecifications:Measure Range:Salinity: 0- 19.99pptTemp.:0~50Resolution:Salinity: 0.01pptTemp:0.1Accuracy:Salinity:2%F.STemp.:1Operating Temperature:O~50Temperature Compensation:0~50Power Supply: 4X15V(AG13)(not included)Dimension: 188mmx35mmx35mmWeight: 98gOperation:1. Remove the protective cap.2. Turn the meter on by pressing the ON key.3. Immerse the electrode in the solution to be tested.4. Stir gently and wait for the reading to stabilize.5. Press the"C/F"key, choice the "C/F"for measuring.6. After use, turn the meter off by pressing the OFF key.Rinse the electrode with distilled water to minimize contamination.7. Always replace the 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 25C)gently shake it and wait for a stable display Regulate the trimmerwith the screwdriver provided until display shows"6.44 at buffer solution temperature of 25C.Rinse the electrode with distilled water, and dry it with filter paper.