Portable dej multi-parameter analyzer:
chemical oxygen xav tau (COD), ammonia nitrogen, tag nrho phosphorus, tag nrho cov nitrogen, tshem tawm cov khib nyiab, xim, turbidity, hnyav hlau, organic pollutants thiab inorganic pollutants, thiab lwm yam. nyeem ncaj qha;
7 nti kov npo, built-in tshuab luam ntawv.