4-in-1 Water Tester Pen – Multi-Function Digital Meter for Precise Water Analysis

Multi-Parameter Testing
– Simultaneously measures temperature, TDS, EC, and pH levels with high accuracy, ensuring comprehensive water quality analysis.
Advanced Digital Display
– Features a clear backlit LCD screen for easy reading in low-light conditions, with auto-off function to conserve battery life.
Durable & Portable Design
– Made with a reinforced ABS plastic body and corrosion-resistant probes for long-lasting performance; compact pen-style design for on-the-go testing.
Wide Application Range
– Ideal for testing drinking water, aquariums, hydroponics, pools, and industrial water systems, ensuring safety and optimal conditions.
Quick & Easy Calibration
– Comes with pre-calibrated settings for instant use, plus manual calibration options for pH to maintain precision over time.
High-Performance Sensors
– Equipped with premium-grade electrodes and a sensitive TDS/EC sensor for reliable, repeatable results in seconds.
Battery-Powered Convenience
– Runs on standard button cell batteries (included), ensuring hassle-free operation anywhere.
Perfect for Bulk Buyers
– Factory-direct pricing with no middleman markups, ideal for wholesalers, labs, and eco-conscious businesses.