Universal Water Quality Tester Pen – TDS, pH, Residual Chlorine, and Electrolysis Meter for Drinking and Tap Water

$111.50

TDS Water Quality Test Pen - Tests Water Hardness/Softness to Control Soaking Time for Water Beads

$8.50

ETT-0681 Transmittance Meter, Clip-On Light Transmission Detector

$2,747.50

Kesijia Gloss Meter, Upgraded MG6-FS Micro-Pore Glossmeter, Optical Instrument

$3,730.80

TDS Water Quality Tester Pen - High Precision Multi-Function Hardness Tester for Drinking, Pure, and Tap Water

$4.93

HI98331 HANNA Handheld Pen-Type Soil Conductivity EC and Temperature Meter, Soil EC Tester

$1,505.00

Cross-Border EU Standard Pen-Type pH Meter, High Precision 3-in-1 pH Tester for Water Quality Detection

$744.76

Taishi TES135A Color Analyzer, TES-135A Object Color Difference Meter

$2,624.00

Pingxuan Instrument Whiteness Meter WSB-1, Whiteness Tester, Whiteness Gauge WSB-2

$2,113.00

TDS Water Quality Tester Pen – High-Precision Conductivity Meter for Home Drinking Water and Mineral Analysis

$29.90

HACH Authorized Dealer DR300 Portable Colorimeter - Tester for Residual Chlorine, Total Chlorine, Chlorine Dioxide, Ammonia Nitrogen, and Ozone

$238.00

Yuanhengtong Pen-Type Dissolved Oxygen Meter YHT8402, Instrument for Measuring Oxygen Levels in Freshwater Aquaculture Ponds for Fish and Shrimp

$784.36