Temperature measurement: Long press to switch the temperature unit; short press to keep the data for easy recording during measurement. 8in1 water quality tester: Digital pH tester with monitoring capabilities for Salinity, SG, PH, H2, TDS, ORP, EC, and TEMP. This single device provides a broad range of water quality data in one compact unit. Automatic poweroff and large backlit display: Autooff helps conserve battery life, while the backlit LCD ensures clear readings in low light or any environment. Two salinity measurements: The digital pH meter can detect the salinity of edible salt and, at the same time, seawater. Food salinity measuring range is 0.0020.00%, with seawater SG range 1.0001.222. Use scenarios Food preparation and cooking: Check brine concentrations and salinity levels for curing, pickling, or brined products to ensure consistent results and safety. Seawater and hydroponic applications: Use in seawater tanks or hydroponics to monitor salinity and SG, alongside pH, temperature, and EC/TDS for stable growth conditions and water quality. General water testing and quality control: Regularly assess pH, TDS, EC, and ORP in drinking water, pool water, or other liquid samples to maintain desired quality standards.