High-Precision Pen-Type Residual Chlorine and Ozone Detector - Accuracy ± 2% - Measuring Range 0-20.00 mg/L - Suitable for Chemical lndustry, Aquaculture, Environmental Monitoring

This versatile portable residual chlorine, ozone, and dissolved oxygen tester provides accurate water quality monitoring in an easy-to-operate compact 1-meter design that delivers lab-quality testing for water treatment, pool, and environmental applications. - It accurately measures residual chlorine from 0-20 mg/L with ±2% full-scale accuracy and a compensation range of 0-60°C. It also measures 0-2 mg/L chlorine. - Also measures 0-2 mg/L ozone and 0-20 mg/L dissolved oxygen for complete analysis. - Durable ABS plastic housing withstands daily use. Large LED display is clearly visible in all conditions. - Intuitive 3-button operation with automatic power-off. Quick response in seconds saves time. - Weighs only 1kg, making it easy to carry. Battery powered for continuous use. Fast and accurate measurements, durable construction and portability make this water quality tester ideal for reliable on-site water quality monitoring.

• Measurement range: CL:0 ~ 20mg/L, O3:0 ~ 20mg/L, temperature: 0 ~ 60 ℃.
• LED segment LCD display (CL/O3 value and temperature value).
• Numerical calibration and temperature calibration functions, using 32-bit high-performance processor, high stability, low power consumption.
• Cl/O3 mode can be switched freely, no need to replace electrodes, low battery indication function, automatic shutdown after five minutes without key operation.
• Commonly used in Chemical lndustry, Aquaculture, Petroleum&Petrochemical lndustry, Environmental Monitoring, Coal lndustry, Sewage Treatment lndustry, Urban Underground Pipe Gallery, Metallurgical lndustry.