Feature:1. The redox tester is made of highquality ABS material, durable and wearresistant.2. Equipped with a backlit display, it is easy to read, will not affect the use in the dark.3. Water quality monitor is easy to operate, just put the tester in the liquid to be tested.4. Widely used in swimming pools, aquaculture, drinking water, irrigation, laboratories, etc.5. The water quality tester has good performance, accurate test results and high stability.Specification:Item Type: Redox TesterMaterial: ABSWeight: Approx. 397g / 14ozUses: widely used in swimming pools, aquaculture, drinking water, irrigation, laboratories, etc.Measuring Range: PH: 0.00~14.00PHTemperature Compensation Range: 0-50 ()Battery Attributes: 4 x DC6V button batteries (battery not included)Adapter: EU Plug 230-240V.Package List:1 x Tester (Battery Not Included)2 x Electrode1 x Adapter1 x Screwdriver1 Bag x Fixed Installation Tool (3Pcs)1 x Manual