3-in-1 Blue Electrical Conductivity Tester, TDS EC Measuring Pen for Water Quality Analysis -

Ultra-sensitive sensor: Its high-precision probe effectively reduces electromagnetic interference in the water, ensuring stable and reliable measurements with a low margin of error.

4 built-in smart modes: Simply press the SHIFT key to switch between TDS, EC, temperature, and calibration modes—ideal for versatile use without complex settings.

Wide daily use: Perfect for monitoring the quality of drinking water, aquariums, breeding ponds, swimming pools, agricultural irrigation, or for laboratory analysis.

Ergonomic and portable design: Compact (154 × 30 × 14 mm), lightweight (65 g), and easy to carry, store, or use in the field—designed for demanding professionals and individuals alike.

High-readability LCD: Large screen simultaneously displays TDS, electrical conductivity (EC), and temperature values, with optimal clarity even outdoors or in low light.

Brightness. Professional precision and resolution: Measurement accuracy of ±0.1 and resolution of 0.1 over a wide range of 0 to 9,990 µS/cm — meeting the requirements of demanding users in technical or regulatory environments. Convenient and self-contained power supply: Operates on a CR2032 button cell battery (120 mAh, not included), providing long battery life without the need for frequent recharging. Package contents: 1 x water quality tester, 1 x durable storage bag, 1 x clear and illustrated instruction manual in French. This product is sold by xiaosong on behalf of a third party. This is a compatible product. Thank you for your understanding and support.