The ACM-ZD-ECO multi-parameter water testing meter is an economical and accurate device for measuring up to six parameters, including pH, conductivity, TDS, salt, and temperature. It is designed for easy field or lab use, featuring a large LCD display, automatic temperature compensation, and quick calibration. The device also boasts low battery indicators, auto shut-off, and a user-friendly interface, making it suitable for various industries and research settings.