HM Digital pH-80 pH Hydrotester

HM Digital pH Meter pH-80 Hydrotester LCD Display With Auto Calibration & Temperature Display

HM Digital HM AP-2 AquaPro Water Quality Tester (EC Tester)

HM Digital Ap-1 Tds Meter: AquaPro Water Tester with Thermometer and Plastic Care Box

HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy, Plastic, Pack of 1

HM Digital TDS-3 Handheld TDS Meter with Carrying Case

HM Digital TDS3 TDS-3 Pocket TDS Meter Water Tester Meter with Leather Carry Case and Temperature Display

HM Digital COM-80: EC/TDS Hydrotester (TDS+Conductivity Meter)

HM DIGITAL In-line Single TDS Monitor

Konvio Neer Manual Calibration pH Meter for water testing, with 0-14 pH scale for Drinking Water, Hydroponics, Aquariums and Swimming Pools, with Buffer Powder and Screw driver | Color May Vary

UB Unity Brand Imported Tds Meter, Total Dissolved Solids Meter, Water Quality Tester, Ppm Tester For Water Testing - White (UB786)

Parijata Digital TDS & EC meter, temperature meter and PH Meter for Water Testing for RO, Hydroponics, pools, Aquaculture etc

Bionexis® Laboratory Research Grade Benchtop pH/mV Meter with 0.01 pH Resolution and - -± 0.05% Accuracy (BNPH002)

Bionexis® Laboratory Multiparameter Analyser pH/ORP/TDS/Conductivity/Temperature #BNMP001

IONIX Ph callibration powder, pack of 9, Ph meter callibration powder, Ph Buffer Solution Powder Ph Test Meter Measure Calibration pH Indicators, 9 pieces, multicolor

10140 Indicator Papers-Full Range (pH 1.0 to 14.0) Fisher Scientific - 10 BKS (200 Strips)

AMPEREUS® Auto pH Meter White | Water Quality Tester for Home, RO, Aquarium & More | Accurate Water Purity, pH Level & TDS Checker for Reliable Testing