Hydrofast - A2S Digital Water Tester, 4 in 1 TDS/ EC Temperature(°C/°F), 0~9990ppm Reading, Ideal for Drinking Water, RO/DI System - White + Black

A2S Digital Water Tester – Your Smart Solution for Purity & Precision! Engineered with a high-precision chip and titanium alloy probe, our advanced 4-in-1 tester delivers accurate, reliable measurements for TDS, EC, and temperature (°C/°F). The large backlit screen ensures clear readings in any light, with color alerts (red/green) for instant water safety checks. Quick, easy, and energy-efficient—simply dip, wait, and read. Perfect for drinking water, hydroponics, pools, spas, and filtration systems, it’s the must-have tool for health-conscious homes and professionals. Trust A2S—where every drop counts!

• Accurate and Reliable Measurements: This digital water tester is equipped with a high-precision chip and a high-quality titanium alloy probe, ensuring the accuracy and stability of water quality testing, making it a reliable tool for water quality testing.
• Upgraded 4-in-1 Functionality and Auto Shut-Off: This digital TDS tester features a 4-in-1 design, allowing a single water quality testing pen to measure TDS (Total Dissolved Solids), EC (Electrical Conductivity) and temperature (°C/°F). After completing a measurement, the TDS tester will automatically shut off within five minutes if no further operations are performed, saving power and enhancing convenience.
• Large Backlit Screen: This digital water tester features a large backlit display screen, allowing for easy reading even in low-light or dark environments. When the measurement value exceeds 40 ppm, the screen will display a red alert. When the measurement value is below 40 ppm, the screen will display green.
• Easy to Use: First, remove the protective cover, then press the power button to turn on the meter. Immerse the digital water tester in water, ensuring the depth does not exceed 1.6 inches. Finally, wait for the display to stabilize. The TDS tester automatically compensates for temperature changes. Once the reading stabilizes (10–30 seconds), press the “Hold” button to remove the TDS tester from the water and view the reading.
• Wide Application: This digital TDS tester checks water purity (TDS levels) for drinking water, daily use, hydroponics, pools, and hot springs. It also monitors water filtration systems (RO/DI, microfilters) to determine if filter replacements are needed.
• Accurate and Reliable Measurements: This digital water tester is equipped with a high-precision chip and a high-quality titanium alloy probe, ensuring the accuracy and stability of water quality testing, making it a reliable tool for water quality testing.
• Upgraded 4-in-1 Functionality and Auto Shut-Off: This digital TDS tester features a 4-in-1 design, allowing a single water quality testing pen to measure TDS (Total Dissolved Solids), EC (Electrical Conductivity) and temperature (°C/°F). After completing a measurement, the TDS tester will automatically shut off within five minutes if no further operations are performed, saving power and enhancing convenience.
• Large Backlit Screen: This digital water tester features a large backlit display screen, allowing for easy reading even in low-light or dark environments. When the measurement value exceeds 40 ppm, the screen will display a red alert. When the measurement value is below 40 ppm, the screen will display green.
• Easy to Use: First, remove the protective cover, then press the power button to turn on the meter. Immerse the digital water tester in water, ensuring the depth does not exceed 1.6 inches. Finally, wait for the display to stabilize. The TDS tester automatically compensates for temperature changes. Once the reading stabilizes (10–30 seconds), press the “Hold” button to remove the TDS tester from the water and view the reading.
• Wide Application: This digital TDS tester checks water purity (TDS levels) for drinking water, daily use, hydroponics, pools, and hot springs. It also monitors water filtration systems (RO/DI, microfilters) to determine if filter replacements are needed.