BLUELAB best sellers

#1 pH Pen ± 0.1 pH Accurate bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ

$99.95 on Amazon

#2 PENCON Conductivity Pen Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

$89.99 on Amazon

#3 🔥 CAREKITPHCON Probe Care BLUELAB CAREKITPHCON Probe Care Kit for pH and Conductivity (TDS/PPM) Probes and Pens with 4 Solutions and Cleaners, Cleaning Kit Tool for Hydroponic system and Indoor Plant Grow

$31 on Amazon

#4 pH 4.0 & 7.0 Calibration Bluelab pH 4.0 & 7.0 Calibration Solution Kit - pH Meter & pH Pen Calibration for Balanced Nutrient Solution NIST Traceable | Hydroponics, Gardening & Growing Tents (500 ml/ 16.9 Fl Oz Each)

$39.99 on Amazon

#5 🔥 TRUNCOMV2 Commercial 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 Grow

$104 on Amazon

#6 STSOL120 KCL Storage Bluelab STSOL120 KCL Storage Solution 120ml pH Probe and Pen, Maintain Meters Used for Water, Soil, and Hydroponic System or Indoor Plant Grow White

$19.98 on Amazon

#7 Combo Meter for pH Temperature Bluelab Combo Meter for pH, Temperature & Conductivity in Water - Easy Calibration, Digital EC/TDS/PPM Tester for Hydroponics & Indoor Plants (METCOM)

$239.99 on Amazon

#8 CAREKITPH pH Probe Care Bluelab CAREKITPH pH Probe Care Kit with Calibration Solution, Storage Solution, and Brush, used for pH Pen, Meter, Monitor, Controller and Tools for Hydroponic System and Indoor Plant Grow

$24.99 on Amazon

#9 732901 2.77EC Conductivity bluelab 732901 2.77EC Conductivity Solution, 500 milliliters Industrial-Products, Clear

$18.47 on Amazon

#10 732899 2.77EC Conductivity bluelab 732899 2.77EC Conductivity Solution, 250 milliliters Industrial-Products, Clear

$13 on Amazon

#11 🔥 2.77EC Conductivity Solution BlueLab 2.77EC Conductivity Solution, PH 7.0, and PH 4.0 Calibration Solution Set 250 Milliliters

$32.59 on Amazon

#12 Truncheon Nutrient Meter Bluelab Truncheon Nutrient Meter, Digital Conductivity Tester in Water (EC, 500, ppm 700, CF, TDS) Tool for Hydroponic System and Indoor Plant Grow

$105 on Amazon

#13 Calibration Solution Bluelab Calibration Solution pH 4.0, 7.0 and 2.77 EC Conductivity Solution, 500 ml Each

$49.99 on Amazon

#14 Bluelab pH 4.0 and 7.0 Bluelab pH 4.0 and 7.0 250ml Duo

$23.88 on Ebay

#15 Conductivity Pen Meter Bluelab Conductivity Pen Meter and Probe Care Kit for Conductivity-Water, Temperature and Nutrient Tester (CF, EC, PPM 500/700) with EC Solution and Cleaner for Hydroponics and Indoor Growing

$109.99 on Amazon

#16 PROBPH pH Probe for Water Bluelab PROBPH pH Probe for Water, Replacement Electrode for Meter, Monitor, and Controller with Easy Calibration, Tool for Hydroponic System and Indoor Plant Grow

$84 on Amazon

#17 🔥 CONSTICK2 Connect Stick Bluelab CONSTICK2 Connect Stick 2 for Bluelab Connect Devices (Monitor and Controller), Wireless Data Logging Kit for Hydroponic System and Indoor Plant Grow

$88.95 on Amazon

#18 PENSOILPH Soil pH Pen Bluelab PENSOILPH Soil pH Pen, Digital Meter and Water Test Kit, Also Used for Coco and Rockwool with Easy Calibration for Hydroponic System and Indoor Plant Grow, Clear

$169.99 on Amazon

#19 CONTPH pH Controller Bluelab CONTPH pH Controller with Monitoring and Dosing in Water Digital Meter for Hydroponic System and Indoor Plant Grow with Easy Calibration, 1, White

$499 on Amazon

#20 732901 2.77EC Conductivity bluelab 732901 2.77EC Conductivity Solution, 500 milliliters Industrial-Products, Clear

$21.99 on Amazon