SA-387S Digital Salinity Meter Salinity Tester for Salt Water Pool Food Salt Salty Hydrometer Aquar

1. Remove the protective cover 2. Press the ON-OFF button on the top of the battery box to turn on the meter. 3. Immerse the meter in the solution to be tested. Do not exceed the maximum immersion level. 4. Stir gently and wait for the reading to stabilize 5. After use. Rinse the electrode with water to reduce contamination. Press the ON-OFF button to turn off the meter. Cover the protective cap after use. Measuring range: 0~19.99ppt Resolution: 0. 01ppt Accuracy: 2% F.S Working temperature: 0~50 Temperature compensation: 0~50 4x1.5V battery power supply without battery Material:plastic colour:Blue Package Contents: 1 x Salinity Meter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.