This is a portable pH tester that can measure pH, ORP, EC and TDS parameters. It can be used for water quality testing, agriculture, food and other industries.
This is the brand manual released by the International Coach Federation (ICF), which mainly introduces the ICF logo, colors, fonts and styles, as well as chapter charters.
Describes the functions, features, specifications, operating instructions, safety instructions and other information of the R8080 sound level meter/data logger