YIERYI Professional 169E ORP/Redox Tester, Positive And Negative ORP Meter

1. Compact and portable pen-type design.
2. Easy to use and provides instant display of results.
3. Apply in water sources, aquarium, hydroponics, spas, swimming pools, and other water systems.

Specifications :
1. Measuring range:0~±1999mV
2. Accuracy: ±5mV
3. Resolution:1 mV
4. Display:4-digital LCD
5. Power Supply:4×1.5V(AG13) To transport security, shipments in
China do not include batteries
6. Dimensions:188×35×35(mm)
7. Weight:118g

Packing List :
1*ORP Tester(with plastic box)
1*Screw driver
3*1.5V battery（To transport security, shipments in China do not
include batteries）
1* Instruction manual