High Precision 3-in-1 TDS Pen – Professional Water Quality Tester

Ultra-Accurate Readings
Measures TDS (0-9990 ppm) and temperature with laboratory-grade precision for reliable water quality analysis.
Premium Build & Durability
Features a corrosion-resistant stainless steel probe and shockproof ABS housing for long-lasting performance in harsh environments.
Multifunctional & User-Friendly
Simultaneously displays TDS, temperature, and unit conversion (℃/℉) with auto-off function to conserve battery life.
Compact & Portable Design
Lightweight, pocket-sized pen with an individual protective case for easy storage and on-the-go testing.
Wide Application Scenarios
Ideal for testing drinking water, aquariums, hydroponics, pools, and industrial water treatment.
Batch Purchase Advantage
Exclusive wholesale pricing for bulk orders—global supply, unbeatable value.