4 in 1 Water Tester for pH, TDS, EC and Temperature

The 4 in 1 Water Quality Test Pen is a compact, multi-parameter digital meter designed to measure pH, TDS, EC, and Temperature accurately and instantly. Ideal for laboratory testing, water treatment plants, aquaculture, agriculture, food processing, RO systems, and drinking water quality monitoring.

This portable tester provides quick and reliable readings with a clear backlit display, making it suitable for both field and laboratory use.

Key Features

• ✅ 4-in-1 Function – Measures pH, TDS (ppm), EC (µS/cm), and Temperature (°C)

• ✅ Wide Measurement Range

  • pH: 0.00 – 14.00 pH

  • TDS: 0 – 9999 ppm

  • EC: 0 – 9999 µS/cm

  • Temperature: 0°C – 60°C

• ✅ Automatic Temperature Compensation (ATC)

• ✅ Digital LCD with Backlight – Easy to read in low light

• ✅ One-Touch Operation

• ✅ Portable & Lightweight Pen Design

• ✅ Auto Power-Off Function

• ✅ Replaceable Electrode Design (Model dependent)

Technical Specifications

Applications

• Drinking water testing

• RO & water purifier monitoring

• Aquariums & aquaculture

• Agriculture & hydroponics

• Swimming pools

• Laboratory research

• Industrial water systems

Package Includes

• 1 × 4-in-1 Water Quality Meter

• Calibration Buffer Powder (pH 4.01 / 6.86 / 9.18 – depending on set)

• User Manual

• Protective Storage Case