Using 545nm LED light source, long life and high precision;

Using high-performance low-power single-chip technology, good human-machine interface;

Support multi-point calibration, support users to edit the calibration curve;

Support storage of 200 sets of measurement data, in line with GLP specifications;

Support USB communication, support to connect to PC for data collection;

Support battery power supply and USB power supply, support power management function, can be set to automatically turn off the light source and automatic shutdown;

IP65 protection level, good waterproof and dustproof performance;

Support firmware upgrade, allowing function expansion and application expansion.

The DGB-404F portable hexavalent chromium analyzer is designed and developed based on the diphenylcarbazide spectrophotometric method. It can directly measure hexavalent chromium in water. It is easy to use, accurate and reliable. This method is suitable for the determination of hexavalent chromium in the field of water quality analysis. The national standard method is widely used in the determination of hexavalent chromium in surface water, industrial wastewater, aquaculture water, drinking water, swimming pool water and other water quality.