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Handheld Digital Tesla Meter High Precision Gaussmeter Fluxmeter Surface Magnetic Field Tester with Probe 0-2400mTAmazon$184.99
BriSunshine Portable Turbidity Meter, Handheld Turbidimeter with Backlight for Testing Turbidity of Liquids, Measuring Range 0-200NTUAmazonSAVE $15.00
$44.99$59.99
Saltwater Meter Salinity Meter Digital Water Tester Hydrometer Ideal for Hydroponics Aquarium Fish Pond Aquaculture High Accuracy Pen Type Meter Specific Gravity(SG) Salinity and Temperature 3 in 1Amazon$78.64
WHY-YUE Portable Laboratory Meter, 3 in 1 PH ORP Temp Meter Water Detector Multi-Parameter Digital Tri-Meter Water Quality Monitor TesterAmazon$1,219.00
"Chemglass pH Meters Ph Baffle Assembly Complete CG1872B02"OpticsPlanet$363.94
BFIS Digital BarometerAmazon$1,081.93
YSI Pro1030 Waterproof Handheld pH/Conductivity MeterAmazon$188.70
General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture MeterAmazon$1,499.00
"Chemglass pH Meters Ph Baffle Assembly Complete CG1872B10"OpticsPlanetSAVE $127.50
$1,147.50$1,275.00
Shimpo TNP-5 Digital Torque Meter Tester, 0-5Nm Range, LCD DisplayAmazon$198.98
Bluelab BLU6400 Inline pH Probe, BlueAmazon$324.49
Micro Matic PH-METER Hand Held Electronic pH Meter - 1.4VWebstaurantStore$1,309.00
"Chemglass pH Meters Ph Baffle Assembly Complete CG1872B01"OpticsPlanet$9.99
Digital Electric PH Meters Pocket Size Water Tester 0-14 PH Measurement Range YellowGroupon$165.29
General Tools Digital Soil Moisture Meter with 8 in. ProbeThe Home Depot$565.00
Wagner Meters Orion® 950 Pinless Wood Moisture MeterAmazon$199.75
Fieldpiece SRH3 In-Duct Digital PsychrometerAmazon$44.64
GENERAL PH501 Pocket Mini Digital pH MeterZoro.com$49.43
Nevup PH EC Temp Meter, Water Quality Meter 3 in 1 Purity Test Pen Portable Digital PH EC Temp MeterAmazon$239.99
"Extech Instruments pH Meters Meter Fluoride FL700"OpticsPlanet$293.35
KDAWN Tension Meter ATL-5 Digital Tension Meter Tension Testing Instrument High Test AccuracyAmazonSAVE $3.68
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Rainwave RW-9FM LCD Digital Water Flow MeterAmazon$2,449.00
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TDS EC Meter Digital Water Tester, 3 In 1 Ppm And Temperature & PH & TDS GenkentWayfairSAVE $12.00
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8 In. Digital ProtractorAcme Tools$117.85
TRIPLETT 6-in-1 Digital Multimeter/Environment MeterThe Home Depot$12.84
KINCREA TDS Water Quality Tester,Accurate TDS, EC & Temperature Meter 3 in 1Amazon$150.00
Portable Digital Water Turbidity Meter turbidimeter 0~200 NTU Minimum Indication: 0.1 NTU WGZ-1BAmazon$24.59
Fdit 5 in 1Portable Salinity/Temperature/TDS/EC Digital Seawater Quality Tester for Pools, Aquariums & SaltwaterAmazon$11.00
VIVOSUN 3-in-1 Soil PH TesterThe Home Depot$65.55
YSI 110-1 Lab Grade pH Probe,1 MeterZoro.com$185.00
Digital Laboratory Barometer NIST TraceableAmazon$20.94
Haofy 3 in 1 Water Quality Meter Tester, pH EC Meter, Digital Temp Meter for Kitchen, Pond, Pool, SoilAmazon$32.80
Professional PH-990 Multi-parameter Online pH Meter Water Quality Monitor TesterBonanza$22.92
iPower pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Tester +/- 2% Readout Accuracy 3-in-1 TDS EC Temperature MeterAmazon$72.62
WHY-YUE Portable Laboratory Meter, Mini 2 in 1 Water Quality Tester Multi-Parameter Water Quality Monitor PH TDS Meter Multiparameter Water Quality AnalysisAmazon$21.43
iSpring 3-Button Digital Water Quality Test Meter with Temperature Test Function | TDS3Lowe's$5.39
Banggood Digital pH Meter Tester+2 Pouches of CalibrationBonanza$5.99
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Amprobe THWD-3 Relative Humidity Temperature MeterAmazon$8.95
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Digital pH Meter Tester Water +2 Pouches of Calibration [Misc.]Bonanza$10.99
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Water Quality Tester pH EC Temperature Pen Type Meter Aquariums Hydroponics Laboratory ToolAmazon$32.43
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Portable Laboratory Meter, Protable LCD Digital PH Meter 16.00 ph Pen Test Aquarium Pool WaterAmazon$57.57
WHY-YUE Portable Laboratory Meter, Ph/ec/Temp 3-in-1 Test Pen Ph Value Water Quality Test Pen Pool Home Detection PH with BacklightAmazon$45.05
Extech PH105 ExStik pH Electrode ModuleAmazon$12.98
HYQELEO TDS Meter Digital Water Tester,TDS EC & Temperature Meter 3 in 1, Ideal PPM Meter for Drinking Water,RO System Aquariums Swimming Pool and More, 0-9990 ppm meterAmazon$13.94
4Pcs TDS-Meter, Digital Pool Salt Tester 1-9990PPM, TDS, EC & Temp Meter 3 in 1,Digital Salinity Tester PPM Meter Resolution Plastic Titanium Alloy Conductivity for Water Aquariums TDS-3 GrayAmazon$569.00
SHengwin Rotary Viscometer 1~2000000mPa.s Viscosity Fluidimeter Tester Meter Lab Digital Viscometers NDJ-8S 110-240VAmazon$33.99
Digital Salinity & Temperature Meter with ATC, Handheld Pen Type Water Quality Measurement Monitor Tester, 0~70 PPT, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & TestingAmazonSAVE $47.14
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Bluelab TRUNCOMV2 Commercial Truncheon Nutrient Meter with Increased Measurement Range, Digital Conductivity (TDS, EC, ppm 500, ppm 700, CF) Tester in Water, Tool for Hydroponic System and Plant GrowAmazon$122.99
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PH Meter, PH Tester Digital PH Meter for Water Test Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range Water Meter for Hydroponics Drinking Water Swimming PoolAmazonSAVE $1.48
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High Quality Water Test Meter. Professional TDS EC & Temperature Meter. 3-in-1. Lifetime Guarantee! Accurate and Reliable Water Test Meter. With Protective Leather Case.Amazon$12.99
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Kensizer 3-in-1 Soil Testers, Moisture/Light/pH Meter, Water Hydrometer Sunlight Tester Digital Plant ProbeAmazonSAVE $1.21
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Stihl Wood Digital Moisture MeterAmazon
$118.99Handheld Digital Tesla Meter High Precision Gaussmeter Fluxmeter Surface Magnetic Field Tester with Probe 0-2400mTAmazon