VIVOSUN Digital pH & TDS Meter Combo Water Test Kit | High-Accuracy Liquid Testing Pens
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Take complete control over your nutrient solutions and water quality with the VIVOSUN Digital pH & TDS Meter Combo Water Test Kit. Perfect for hydroponics, indoor grow rooms, home aquariums, swimming pools, and reverse osmosis (RO) filtration systems, this handheld testing duo provides lab-grade precision within seconds.
Featuring ultra-sensitive electrodes and built-in Automatic Temperature Compensation (ATC), both pens adjust automatically to your water temperature. This eliminates tracking errors and ensures perfectly stable, accurate readings whether you are measuring ice-cold reservoir top-ups or warm nutrient brews.
Key Benefits
- Complete 2-in-1 Monitoring: Test pH acidity/alkalinity alongside Total Dissolved Solids (TDS), Electrical Conductivity (EC), and liquid temperature.
- Ultra-Precise & Rapid Readings: Highly sensitive probes deliver instant data, helping you prevent nutrient lockout, root burn, and overfeeding before it hurts your crops.
- One-Touch Auto Calibration: The pH pen features smart multi-point calibration that pairs perfectly with the included powder buffer packets for seamless maintenance.
- Data-Hold & Backlit Displays: Crystal-clear green backlit LCD screens allow effortless reading under harsh grow lights or inside dim tents. Use the manual "Hold" function to freeze readings for your logbook.
- Pocket-Sized & Portable: Sleek, pen-type designs fit comfortably into tool pouches, pockets, or storage boxes for on-the-go water testing.
Technical Specifications
- pH Meter Measuring Range: 0.00 to 14.00 pH
- pH Meter Accuracy: ±0.1 pH (with 0.01 pH resolution)
- TDS Meter Measuring Range: 0 to 9999 ppm
- EC Meter Measuring Range: 0 to 9999 µS/cm
- Temperature Range: 0.1°C to 80.0°C / 32.0°F to 176.0°F
- Power Source: Battery-powered (Pre-installed button cells included)
- Included Components: 1x Digital pH Pen, 1x 3-in-1 TDS/EC/Temp Pen, 3x pH Calibration Buffer Packets (4.00, 6.86, 9.18), Instruction Manual.
Product Packaging Weights
- Individual Pen Weight: ~0.10 kg (100g per tester)
- Complete Retail Kit Weight: 0.26 kg (Gross weight including meters, calibration solutions, and box)
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Vivosun
- Tags: Ph & ec management, Ph & ec management tools

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