| Hach’s Pocket Colorimeter II Filter Photometer is a true go-anywhere instrument. It is lightweight, battery operated, and ideal for extended field work. The upgraded instrument is now waterproof, and it can stay submerged at three feet for 30 minutes and remain fully functional. It is so lightweight (only 8 oz.) that it actually.. Read more Posted in Sensors and Technology Also tagged ammonia, chlorine, chlorine dioxide, colorimeter, dissolved oxygen, Hach, handheld meter, monochloramine, nitrate, ozone, phosphate, Product Spotlight, sulfate Leave a comment
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