Measuring range : 0~±1999mV
Accuracy : ±5mV
Resolution :1 mV
Display : 4-digital LCD
Power Supply : 4 × 1.5V(AG13)
Dimensions : 188 × 35 × 35(mm3)
Weight : 118g
How to use :
1. Pull out the cap
2. Click the button on/off,and insert the plug into the liquid.
3. When the reading is steady,click the button "Hold",then,get the result
4. After use,clear the plug.
Package includes :
1 x ORP-169E Redox Measurement Test Tool
1 x Screw driver for open
1 x English use manual
Comes in retail box :)