
Apera Instruments
Apera Instruments PC60 Premium pH/EC/TDS/Salinity Multi-Parameter Pocket Tester, Replaceable Probe, Waterproof, ±0.01 pH/1% Accuracy, -2.00-16.00 pH; 0-20.00 mS/cm Range, ±0.5°C Temperature Sensor

Milwaukee
Milwaukee Instruments MW102 PH and Temperature Meter

Bluelab
4%OFF
Bluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White

Apera Instruments
Apera Instruments SX610 pH Meter, Pen Tester, Waterproof , ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor

Apera Instruments
Apera Instruments PH20 Value pH Meter, Pocket Tester, Waterproof, ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor, Complete kit

BOJACK
BOJACK pH Test Strips Universal Test Paper pH 1-14 Litmus Paper for Soil, Water, Saliva, Cosmetic, Pet Food & Diet pH Test (5 Packs of 400 Strips)

Gardeners Corner
Gardeners Corner Growth Technology pH Test Kit 250ml Up & Down Solution Vitalink pH Test

flintronic
PH Meter, 5-in-1 PH/TDS/EC/Salinity/Temperature Water Quality Tester, LCD Green Backlight Display Water Quality Tester for Aquarium/Hydroponics/Drinking Water/Pool/Pond

ECENCE
ECENCE pH test strips 100 pcs., litmus test paper, measuring range 0-14, universal indicator paper, acidity test for aquariums, drinking water