ÍðIdentifies the quality of drinking water ¹Ùwithin three seconds Tests the degree of secondary pollution in the water dispenser Tests the degree of pollution on secondary water supply Tests the irons, bacterium and toxic elements in the water quickly Environment temperature: 5 < =T < =50 ¹Ù¹Ù¹Ù¹ÙRelative humidity of environment: < =95
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