Precision TDS Pen for Water Quality Testing
Ultra-affordable TDS meter with accurate measurement (0-9990 ppm) for aquariums, hydroponics, and drinking water. Features a durable ABS body with corrosion-resistant electrodes for long-term use. Instant one-button operation with auto-calibration for reliable results. Compact pen design with a clear LCD screen for easy portability and on-the-go testing. Ideal for hobbyists, fishkeepers, and water purification professionals. Ensures optimal water purity for aquatic life and safe consumption. Wholesale pricing available—bulk discounts for large orders. Trusted global supplier with guaranteed lowest prices.