Product Description: TheTDS Test Pen is a compact and accurate tool used to measure Total Dissolved Solids (TDS) in water. It helps determine the purity of water by detecting dissolved salts, minerals, and impurities — making it ideal for aquariums, RO/DI systems, drinking water, hydroponics, and more.
With its easy-to-read digital display, fast results, and auto shut-off function, this pen is perfect for hobbyists, aquarists, and anyone who values clean, safe water.
✅ Key Features:
Accurate TDS Reading: Measures from 0–9999 ppm
Digital LCD Screen: Clear, fast-read results
One-Touch Operation: Simple and user-friendly
Auto Shut-Off: Saves battery when not in use
Portable & Lightweight: Fits easily in pockets or toolkits
📦 Specifications:
Measurement Range: 0–9999 ppm
Accuracy: ±2%
Power Source: Replaceable battery (included)
Display Type: Digital LCD
🐠 Suitable For:
Freshwater & marine aquariums
RO/DI water systems
Tap water testing
Hydroponics & agriculture
Laboratories & household use
Why Use a TDS Pen? High TDS can affect fish health, coral growth, and plant development. Monitoring it regularly ensures clean and safe water for all aquatic life.
