High Accuracy 3-in-1 TDS EC Temp Water Quality Tester Pen

Precision Measurement
Professional-grade sensors deliver instant and accurate readings for TDS (0-9990 ppm), EC (0-9990 μS/cm), and temperature (0-80°C) with ±2% margin of error. Ideal for testing drinking water, aquariums, hydroponics, and industrial applications.
Premium Build & Portability
Features a durable ABS body with corrosion-resistant stainless steel probes. Compact pen design (15.2 x 3.1 cm) fits in pockets or toolkits for on-the-go use. Auto-off function extends battery life.
User-Friendly Operation
One-button calibration with included 342 ppm NaCl solution. Backlit LCD screen ensures clear visibility in low light. Waterproof casing (IP67 rated) withstands splashes and humid environments.
Versatile Applications
Essential for home water purifiers, pool maintenance, agriculture, laboratories, and beverage production. Ensures compliance with safety standards for purified or filtered water.
Bulk Order Advantage
Direct factory pricing with wholesale discounts for large-scale procurement. Global shipping with reliable logistics support. Upgrade your water testing with lab-grade accuracy in a portable, rugged design. Order now for unmatched value and performance.