YY400H Hydrogen and Temperature Measurement Instrument Measurement capability: YY400H can measure hydrogen in water (04000 PPb; 04.000 ppm) and water temperature (0.160.0°C; 32.0140°F) with accuracy. Accurate sensing and ATC: Uses quality alloy probes and reliable automatic temperature compensation (ATC) to maintain accurate readings across different temperatures. Power saving: Automatic shutdown after 5 minutes of inactivity to conserve power. Rugged protection: IP67 waterproof rating for dust and water resistance, suitable for use in wet environments and brief immersion. Component quality: Built with durable alloy probes designed for longterm performance in water testing. Practical benefits: Provides a comprehensive assessment of water quality by simultaneously monitoring hydrogen concentration and temperature, supporting informed decisions to maintain healthy water conditions. Use scenarios: Water treatment and drinkingwater facilities: monitor hydrogen levels and temperature to ensure safety and compliance. Industrial process water monitoring: track hydrogen presence in process streams where hydrogen evolution may occur. Field and laboratory testing: convenient for environmental research, aquaculture, or hydroponics where stable hydrogen and temperature readings are required. Why choose YY400H: Delivers reliable, accurate hydrogen and temperature measurements in a compact, rugged package with automatic temperature compensation and energysaving shutdown, all protected by IP67rated durability for realworld use.