The instrument adopts the platinum-cobalt colorimetric method (GB/T 5750.4-2006), and adopts imported high-performance, long-life, high-brightness light source, coupled with a high-stability optical system, which has the characteristics of stability, good repeatability, and high precision. It is widely used in the determination of drinking water, surface water, surface water, ground water and other water quality.

1. Using imported high-performance, long-life (100,000 hours), high-brightness light source, equipped with a narrow-band filter system, has strong optical stability and is not easily disturbed by various lights, so the instrument has high precision and good stability.
2. Large-screen LCD Chinese display, Chinese menu operation, simple and intuitive.
3. It can save 10 standard curves and 500 measured values, which will not be lost when power off.
4. The casing of the host machine is made of molded ABS material, which has good corrosion resistance.
5. Adopt high-performance, low-power 16-bit single-chip microcomputer system with good performance.
6. With printing function and USB interface upload function