HANDHELD METER KIT AP74 DISSOLVED oxygen, waterproof with carry case, DO/temp probe,electrolyte solution, membrane caps with polishin g disk and backlit LCD0.5kg DO range 0 to 20mg/L (ppm), temp range 0?C to 50?C
HANDHELD METER KIT AP74 DISSOLVED oxygen, waterproof with carry case, DO/temp probe,electrolyte solution, membrane caps with polishin g disk and backlit LCD0.5kg DO range 0 to 20mg/L (ppm), temp range 0?C to 50?C
