Portable Laboratory pH Conductivity Meter Handheld Tester Instrument 0.01pH

333

Automatic pH Control System for Wastewater Treatment Water Quality Monitoring with Fully Automatically Dosing Pump and Dual Relay Outputs

492

CO2 Monitor Day Night CO2 Controller Meter for Greenhouse, White

251

Mini Greenhouse Air Quality Detector Outdoors CO2 Temperature Tester for Building Office

511

Smart CO2 Controller Can Automatically Detect Day or Night with Built-in Dual Beam Ndir Technology and Two Independent Socket for Greenhouse Mode and Vent Mode

233

Wholesale Waterproof Photo Meter Light Meter Measures Photosynthetic Light on Plant Canopy Fastly.

433

CO2 Controller Gas Detector with Remote Sensor for HVAC Ventilation

441

Digital and Precise PAR Meter with Waterproof Probe Sensor for All Light Sources of Indoor or Outdoor Planting

456

Portable Convenient PAR Meter for Indoor or Outdoor Plants Quantum with Waterproof Sensor

434

Digital Waterproof Light Meter and Portable Meter Detect Light Intensity Luxmeter with Equitable Price

506

Exact Testing pH Controller Dual Relay pH Controller for Hydroponic Solution Management Automatically Adjust pH Level

522

Digital CO2 Controller with Day and Night Relay Function and Human/Plant Mode for Grow Room, Greenhouse and Indoor Plant

414

High Precision Ppfd Quantum PAR Meter Lux Meter for All Light Sources

235

Cutting-Edge pH Controller with Monitoring Probe and Automatic Dosing Pump Digital Meter for Hydroponic System

482

Multi Function CO2 Detector for Indoors Hydroponics and Air Ventilation System

408

3 in 1 Monitor with Ndir Sensor to Monitor CO2/Temperature/Humidity for Travel, Outdoor and Indoor

309

Carbon Dioxide Controller CO2 Sensor Controller for Grow Room, Grow Tent, Home, Office

364

Automatic pH Controller for Wastewater Treatment Water Quality Monitoring with Fully Automatically Dosing Pump and Dual Relay Outputs

294

Greenhouse CO2/Carbon Dioxide Portable Gas Sensor for Hospitals/Schools/Farms/Home

274

Automatic Detect Photo Meter Test Equipment Spectrum Quantum Analytical Instrument Portable Light-Meter

454

PAR Meter Monitoring Plants Physiology for Seedling Cultivation and Horticultural Planting with Waterproof Probe Sensor.

505

Portable Plant Photosynthesis Meter Digital Light Meter Ppfd Tester Solar Radiation Meter

513

Ndir Air Quality Meter Infrared Gas Analyzer Dust Monitor From China

417

Digital pH Controller with Dual Relay for Hydroponics and Indoor Plant Grow

448

High Precision Quantum PAR Meter with Battery, LCD Display

422

CO2 Air Quality Monitor with Dual Beam Ndir Sensor for Home, Greenhouse and Indoor Plant.

520

Desktop Carbon Dioxide Monitor CO2 Detector with Data Logger Temperature and Humidity

252

Smart Mini CO2 Monitor Air Quality Detector for Home, Office, Greenhouse and School

440

Made in China Carbon Dioxide Controller CO2 Meter Indoor Air Quality Ndir Sensor Amazon Hot Sale

500

PAR Meter Measuring Ppfd 400-700nm for Agriculture, Greenhouse, Hydroponics Plant

306

CO2 Monitor with Ndir Sensor for Indoor Plant and Air Quality Detecting

473

CO2 Detector with Ndir Sensor and Alarm for Air Quality Monitor and Indoor Plant

514

PAR Meter for Greenhouse Outdoor Agriculture Plant Light Meter Hydroponics Quantum Sensor

419

TDS Meter TDS-3 Water Filter Parts

405

Energy Dispersive X-ray Fluorescence Spectrometer Edxrf Spectrometer

493

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