IXTIX Water Tester Water Quality Tester Digital pH Meter PH EC TDS Salinity Temp 5 in 1 Pen Meter Precise LCD Digital Multifunctional Water Quality Monitor Test - Walmart.com
Extech Instruments PH 100 ExStik Ph Meter PH from 0-14.00 pH New open Box 723434132528 | eBay
EXTECH EC510 Waterproof ExStik® II pH/Conductivity Meter Kit