Range: 0.00~9990ppm (mg/L)

Resolution: 10ppm (mg/L)

Accuracy: ±2% F.S

Battery: 4X1.5V(AG-13) (not included)

Temperature Compensation :0 ℃~50℃

Operating Temperature :0 ℃~50℃

Auto shut off:10 min

Dimensions : 147mm×27mm×18mm

weight : 42g

1.Remove the protective cap；

2.Clean the electrode with distilled water,and suck it with filter paper;

3.Turn the meter on by“on/off” switch；

4.Immerse the meter electrode in solution up to the immersion level.Under no circumstances immerse above display level.

5.Gently stir,wait till the reading is stable,pres“hold”key, and take the TDS meter out, then use the reading figure x10 to get the TDS value

6.After use,switch off and use the distilled water to clean the electrode and replace the protective cap.

1.Immerse the meter in the distilled water.Activate it about some hours。

2.Immerse the meter in 6440ppm（mg/L) calibration solution(at 25℃）,and stir it gently.

3.Allow the reading to stabilize and turn the calibration trimmer with a small screwdriver untile the display shows“644”.

4.Rinse the electrode with distilled water and suck it with tissue paper.

5.Immerse the meter in 1390ppm（mg/L)(at 25℃),and stirit gently. Display value must be same as calibration solution(at 25℃)or approach the value in the area of resolution