7in1 Multifunctional Testing Pen Water Quality Tester with 7in1 measurement capabilities including pH, TDS, EC, Salinity, SG and ORP. Benefits at a glance Allinone testing: Captures multiple key water parameters in a single device, reducing the need for separate meters and simplifying inventory. Fast, simple readings: Immerse the probe for instant results with no complex setup. Onetouch operation eliminates frequent mode switching, saving up to 50% of testing time. Clear, reliable display: resolution backlit LCD and intuitive buttons ensure readings are easy to read in bright sunlight or dim conditions. Key features Function: 7in1 measurement capabilities for pH, TDS, EC, Salinity, SG, and ORP in a single tester. Compatibility: Suitable for a wide range of environments, including swimming pools, aquariums, hot springs, hydroponic systems, hot tubs, irrigation, ponds, and drinking water testing. Display: resolution backlit LCD screen with simple controls, ensuring visibility and ease of use in all lighting conditions. Operation: Simply immerse the probe in water to obtain instant readings; no complicated setup required. Streamlined, onetouch operation reduces testing steps and time. Practical applications Pool and hot tub maintenance: Monitor pH and ORP to help maintain water quality and sanitization efficiency. Aquarium and hydroponics: Track pH, TDS/EC, salinity, and SG to support healthy aquatic life and plant growth. Drinking water and irrigation: Verify water quality for safe consumption and effective irrigation, reducing guesswork and posttest adjustments. Why this device stands out Versatile 7parameter test in one pocketsized tester, designed for quick checks across home and professional settings. Userfriendly design with a backlit display and straightforward controls that minimize setup time and operator errors. Broad applicability across pools, aquariums, hydroponics, and outdoor water systems, making it a practical choice for households and facilities seeking reliable, allinone water testing.