• pH Test Strips for Urine & Saliva - 100 Strips, 4.5 to 9.0 ph Paper for Water & Body pH Testing - Acid Alkaline Litmus Paper pH Test Strips for Humans by PUREFIZ KWD 4.500
• -14% 0-90% Brix Refractometer - Portable Refractometer Handheld, Sugar Content Meter for Honey, Fruit, Maple Syrup - Accurate Brix Meter by PUREFIZ KWD 9 KWD 11
• TDS Meter Digital Water Tester - 4 in 1 TDS Water Tester - Accurate and Reliable TDS EC, 0-9990 ppm Meter & Temperature(°C,°F) - Professional Water Tester for Drinking Water & More by PUREFIZ KWD 5.500
• Pool Salt Tester & pH Meter - Digital Salt Water Pool Tester 5-in-1 Salinity pH Temp EC TDS Meter for Saltwater Pool, Hot Tub, Aquarium, Hydroponics, Drinking Water, High Accuracy Digital Pool Tester KWD 11