VIVOSUN Digital pH & TDS/EC Meter Combo — 0.01 Accuracy, ATC & Backlit LCD for Hydroponics

Whether you're managing a hydroponic setup, an aquarium, an RO system or checking household drinking water, this kit combines a high-resolution pH tester and a 3-in-1 TDS/EC/temperature meter. Both instruments include automatic temperature compensation (ATC), calibration materials, and user-friendly functions like hold and memory so you get repeatable results without guessing.

How accurate are the pH and TDS/EC readings?

The pH meter measures across the full 0.00–14.00 pH scale with 0.01 resolution for fine control, while the TDS/EC meter covers wide ranges up to 9999 ppm and 9999 S/cm with reliable stability. ATC and sensitive electrodes help maintain precision across different water temperatures.

• pH range 0.00–14.00 with 0.01 resolution
• TDS 0–9999 ppm, EC 0–9999 S/cm
• Temperature readout 0.1–80°C (32–176°F) with ATC
• Ultra-sensitive electrodes for quick stabilization

What features make the meters easy to use in daily testing?

Both devices have large backlit LCD screens for clear viewing in dim environments and a hold function to freeze readings while you record them. Automatic calibration and included buffer powder packs remove much of the setup friction, and memory retains settings through power interruptions.

• One-touch automatic calibration for the pH meter
• Backlit LCD and hold function for easy reading
• Memory function preserves settings after shutdowns
• Complete kit includes calibration powder packs and batteries

Can I use this combo for hydroponics, aquariums and household water?

Yes—this set was designed for versatile water monitoring across many applications. Use the pH meter to balance nutrient solutions and the TDS/EC meter to track dissolved solids and conductivity in reservoirs, aquariums, pools, or drinking water systems.

• Hydroponics: adjust nutrient pH and concentration
• Aquariums: monitor water chemistry for aquatic life
• RO systems, pools, spas: verify filtration and safety
• Household water checks: spot-test TDS and pH quickly

How does safety and reliability factor into the product?

The meters meet UL safety standards for dependable operation, and robust construction supports repeated field or indoor use. Calibration supplies and clearly labeled controls reduce user error, while ATC compensates for temperature-driven variability in readings.

• UL certified for electrical safety and reliability
• Clear labels and simple controls to minimize mistakes
• ATC maintains accurate readings across temperatures
• Durable electrodes designed for routine testing environments

Who is this for: gardeners and hydroponic growers who need milligram-level control of nutrient solutions; aquarium hobbyists maintaining stable water chemistry; pool and spa owners verifying conductivity and dissolved solids; and homeowners who want an easy, accurate way to test drinking water and filtration systems. The VIVOSUN combo is aimed at anyone who values repeatable, lab-style measurements without professional equipment or complicated interfaces.