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Hofun 5-in-1 Digital Water Quality Tester User Manual

9909-A-1 • August 5, 2025

Comprehensive instruction manual for the Hofun 5-in-1 Digital Water Quality Tester (Model 9909-A-1), covering setup, operation, calibration, maintenance, and troubleshooting for pH, Salinity, TDS, EC, and Temperature measurements…

Hofun 3-in-1 Water Quality Tester User Manual

YL-TDS2-A • June 26, 2025

Comprehensive user manual for the Hofun YL-TDS2-A 3-in-1 TDS, EC, and Temperature Meter. Includes setup, operating instructions, maintenance, troubleshooting, and specifications for accurate water quality testing.