Lab Equipment

EC Conductivity TDS Temp Meter Tester ppm ppt uS mS C/F US $25.90

3-in-1 EC Conductivity TDS Temperature Meter Tester ppm ppt uS mS °C °F w/ ATC US $26.50

DY881 Carbon Monoxide Meter CO Monitor Gas Tester Detector 0-1000PPM Alarm,NEW US $59.90

Instant Read LCD Digital TDS Meter Tester Drinking Water Quality PPM Purity Pen US $13.00

LCD Digital TDS Meter Tester Water Quality PPM Purity Filter Pen Hydroponics US $13.00

accurate digital LCD TDS meter/tester pen water quality0999 ppm purity filter US $9.99

Hanna TDS1 water meter tester 999 ppm aquarium pools US $19.95

H&M Quality TDS Meter, Ppm Accuracy US $9.90

DIGITAL CO CARBON MONOXIDE METER 0 to 1000 ppm DCO1001 US $188.95

TDS Meter, PPM Tester for RO DI water filters, reef US $9.90

Brand New Bluelab Truncheon EC, CF, ppm meter + Roots Organics complete line US $75.00

pH/ppm/Temp/EC/CF/TDS, 6in1 Meter,Hydroponics,Aquatics US $134.00

pH/ppm/Temp/EC/CF/TDS, 6in1 Meter,Hydroponics,Aquatics US $134.00

NUTRIENT TRUNCHEON METER HYDROPONICS WAND EC/PPM/CF H62 US $38.55

Wholesale lot, resale, 18 Digital TDS PPM Meter Hydroponics Water Tester w/case US $140.00

NUTRIENT TRUNCHEON METER HYDROPONICS WAND EC/PPM/CF H62 US $38.55

NEW PH PPM TEMP TDS EC CF METER WATER HYDROPONIC TESTER US $131.99

Promess PPM Electronics 8500300103 monitor panel meter US $750.00

pH/ppm/Temp/EC/CF/TDS, 6in1 Meter,Hydroponics,Aquatics US $134.00

Digital LCD TDS Meter Tester Water Quality 0-999 ppm PH Test Set Filter Purity US $10.34

NUTRIENT TRUNCHEON METER HYDROPONICS WAND EC/PPM/CF H62 US $38.55

NEW PH PPM TEMP TDS EC CF METER WATER HYDROPONIC TESTER US $131.99

NEW PH PPM TEMP TDS EC CF METER WATER HYDROPONIC TESTER US $131.99

Waterproof Digital TDS Meter Water Tester 0-1999 ppm US $19.90

Soil Meter digital pH rapitest &The Grow Book Vol II pH PPM Storage 4.0 7.0 US $19.99

Digital TDS 0-999 Meter Tester Water Quality ppm Purity Filter With battery New US $8.61

EC CF PPM Dipstick Meter Hydroponics Nutra-wand US $24.90

EC CF PPM Dipstick Meter Hydroponics Nutra-wand US $22.90

Control Wizard pH Meter & PPM Meter w/ 4oz Solutions US $94.95

Control Wizard pH Meter & PPM Meter w/ 16oz Solutions US $104.95

Control Wizard Digital pH Meter & PPM Meter Hydroponics US $84.95

HM Digital TDS-EZ Meter/Tester, Water/ppm/Purity/Filter US $16.50

Digital TDS EC Pool Water Quality Tester Meter 1999 ppm US $15.19

TDS1: Hanna TDS Meter/Tester PPM/Water/Filter/DI/RO US $19.75

TDS Digital Water Quality Tester Meter ppm Hydroponics US $2.69

LCD PH PPM Temp EC CF TDS Water Hydroponic Aquarium Meter Digital Tester Monitor US $117.95

HM Digital ZT-2 TDS ppm Tester HMD ZT2 Zero Water Meter US $21.00

LCD digital tds meter for tester water quality PPM filter Purity tools test set US $.01

Carbon Monoxide CO Meter Tester Monitor Detector PPM US $77.90

TDS Digital Water Quality Tester Meter ppm Hydroponics US $8.66

NEW PH PPM TEMP TDS EC CF METER WATER HYDROPONIC TESTER US $110.39

New Digital TDS Meter Tester Water PPM Filter Purity US $12.49

Digital LCD TDS Meter Tester Water Quality 0-999 ppm PH Test Set Filter Purity US $10.20

HM Digital TDS-3 Meter Filter Water Quality Purity TDS3/Temp/ppm/Tester/New US $9.98

Digital TDS Meter Filter Water Quality Purity TDS/Temp/ppm/Tester For hydroponic US $10.28

Digital TDS Meter Filter Water Quality Purity T​ester hydroponicTemp ppm T​ester US $10.28

HM Digital TDS-3 Meter test Filter Water Quality Purity TDS3/Temp/ppm/Tester/New US $9.97

Digital LCD TDS Meter Tester Water Quality 0-1999 PPM PH Test Set Filter Purity US $12.99

Digital TDS Meter Filter Water Quality Purity TDS/Temp/ppm/Tester For hydroponic US $10.28

LCD TDS Meter Tester Water Digital Quality 0-1999 PPM PH Test Set Filter Purity US $12.99

Po...

LCD digital tds meter for tester water quality PPM filter Purity tools 0-999ppm, pH °C ORP EC CF TDS PPM Monitor Water Meter Tester LED, EXFO ppm-350c Pon Power Meter Brand New All Original Packaging, PPM Inc. MilliOhm Meter Model R1L-B, LCD PH PPM Temp EC CF Water Hydroponic Aquarium Meter Digital Tester Monitor TDS, Lot of 10 Lexmark T644N Business Network Laser Printer 50PPM T644 Meter 100K, EXFO PPM-350C PON Power Meter, Digital Carbon Monoxide CO Gas Meter Tester Monitor Detector Gauge 0 ~ 999 PPM, TDS Digital Water Quality Tester Meter ppm Hydroponics, LCD digital tds meter for tester water quality PPM filter Purity tools test set, TDS Digital Water Quality Tester Meter ppm Hydroponics, McCurdy ATS-100 Extended Range VU / PPM Audio Level Meter, PPM Inc. MilliOhm Meter Model R1L-B with Pelican Case, NICE LOW METER RICOH MP 3350 MULTIFUNCTION COPIER 33PPM, Promess PPM V1.2 Meter with 211M11 Load Cell,

Po...