VOONLINE Digital pH and TDS Meter Kit – Precision Water Testing Simplified

High-Precision pH Measurement
Features 0.01pH resolution with ±0.01 accuracy for lab-grade results. Advanced glass probe ensures stable readings in water, aquariums, pools, and hydroponics.
Dual-Function TDS Testing
Measures Total Dissolved Solids (0-9990ppm) with ±2% accuracy. Ideal for checking drinking water purity, hydroponic nutrients, or industrial water quality.
Premium Build & Auto-Calibration
Durable ABS body with reinforced sensor protection. Includes pre-mixed calibration powders (pH 4.01/6.86/9.18) for one-click calibration.
Instant Read & Portability
Backlit LCD displays results in 3 seconds. Compact pen design fits in pockets for on-site testing in labs, farms, or travel.
Complete Kit Ready-to-Use
Includes pH/TDS meters, calibration solutions, batteries, and a protective case. No extra purchases needed.
Bulk Order Advantage
Direct factory pricing with volume discounts. Trusted by water treatment professionals and global distributors.