Precision Water Testing On The Go
The TDS-3 Portable Tester Pen delivers instant, accurate readings of water purity (0-9990 ppm) with a high-resolution LCD and built-in temperature sensor. Its durable ABS plastic body and titanium alloy electrodes ensure long-lasting performance.
Ultra-Compact & User-Friendly
Designed for one-handed operation, this pocket-sized meter auto-calibrates and features a hold function for stable readings. Ideal for testing tap water, aquariums, hydroponics, or RO filters—anywhere, anytime.
Professional-Grade Reliability
Lab-tested ±2% accuracy with replaceable batteries. Perfect for homebrewers, travelers, or eco-conscious households needing quick water quality checks without bulky equipment.
Batch Purchase Advantage
As a global wholesale supplier, we offer unmatched bulk pricing—stock up for your business or community with guaranteed lowest rates on this essential tool.