Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI Fluval 4 x Button battery

4 x Button battery

It also provides trace elements: sulfur for proteins

Although it is simple to find information on the internet to guide you through the process

4in Package List: 1 x Detector 1 x Screwdriver 1 x Manual

and pH (pH)

Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI Fluval 4 x Button batteryBrand: ORAPXI Color: Black Features: Salinity Range: 0~9999ppm 10~200ppt or 0. 0 25%, ORAPXI salinity tester has an automatic temperature compensation function(32F~140F), which can decrease the error caused by the change of liquid temperature. Wide applications: There are various purposes for the salinity tester. This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater,