Easy Operation TDS-M3 Pen Digital Water Tester & pH Meter

Ultra-Precise Measurement
– High-accuracy sensors detect TDS (0-9990 ppm) and pH (0.0-14.0) with ±2% error margin for reliable water purity analysis.
Premium Build & Portability
– Durable ABS casing with reinforced probe tip, compact pen-style design (15cm) for on-the-go testing in labs, pools, or travels.
One-Touch Smart Calibration
– Auto-temperature compensation (0-80°C) and replaceable batteries ensure long-term stability without frequent recalibration.
Multi-Scene Application
– Ideal for testing drinking water, aquariums, hydroponics, industrial water treatment, and home brewing.
Instant Read & Low Maintenance
– LCD backlit display delivers results in 3 seconds; waterproof body resists corrosion for extended durability.
Batch-Order Friendly
– Bulk discounts available for commercial users (restaurants, labs, suppliers) seeking cost-effective quality control solutions.
Certified Safety
– RoHS-compliant materials ensure non-toxic operation, backed by 12-month warranty for risk-free procurement.