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this backpack easily accommodates laptops
Save time and money with this electronic tester
EASY TO INSTALL - Each USB car light has a super-adhesive strip on the back for easy installation
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It is an electronic testing device for routine monitoring of pH and chlorine (Cl2) levels in swimming pools
๐ฌ๐ง pH & Cl2 Pool Tester โ Precise Measurement of pH & Chlorine in Your Pool โ Simple, Fast, Reliable. ๐ฅ๐ ๐ถPet this backpack easily accommodates laptopsFEATURES pH and Cl2 Chlorine Tester This indispensable tool delivers fast and precise readings of pH and chlorine levels. Since chlorine is the most commonly used disinfectant for water to kill bacteria, algae, and microorganisms, this tester is ideal for keeping your pool or hot tub within safe chlorine and pH ranges no chemicals or guesswork required. It is an electronic testing device for routine monitoring of pH and chlorine (Cl2) levels in
