Cultivation Equipment and Supplies :: Hydroponics :: Meters & Controllers

Bluelab Connect Pro Controller | Remote Monitoring of pH, EC and Temperature

Product Code:

BLBCONTPRO

Bluelab Connect Pro ControllerRemote Monitoring of pH, EC and TemperatureStay connected to your reservoir's pH, EC, and temperature with the Bluelab Pro Controller. This controller maintains stable pH and nutrient levels in your reservoir, ensuring optimal nutrient availability for your plants....

$1,293.90 $1,812.17 -29%

Out of stock

Bluelab pH Controller | 6.5ft Probe Cable - Dose pH Up or pH Down

Product Code:

BLBCONTPH

Bluelab pH Controller6.5ft Probe Cable - Dose pH Up or pH DownThis controller fine-tunes the reservoir pH levels for you. It offers automatic measuring and adjusting to pre-set pH levels with optional alarms. Provides consistent control of pH in growing systems with intuitive "on time" and "off...

$672.65

Out of stock

Bluelab Guardian Monitor In-Line Connect | 10 ft In-line Probe Cable

Product Code:

BLBMONGUACONIN

Bluelab Guardian Monitor In-Line Connect10 ft In-line Probe CableThreaded probe heads allow for simple installation direct into an irrigation line for effective in-line measurements. Suitable for use before or after mechanical injectors. Both conductivity and pH probes can screw directly into...

$581.75 $814.77 -29%

Out of stock

Bluelab Guardian Monitor Connect | 6.5ft Probe Cable

Product Code:

BLBMONGUACON

Bluelab Guardian Monitor Connect6.5ft Probe CableA constant indicator of pH, conductivity, and temperature, enabling you to optimize these parameters. Monitor and wirelessly data log the essential nutrient solution parameters - pH, conductivity, and temperature - when teamed up with a Bluelab...

$443.02 $620.47 -29%

Out of stock

Bluelab Guardian Monitor | 6.5ft Probe Cable

Product Code:

BLBMONGUA

Bluelab Guardian Monitor6.5ft Probe CableMonitoring your crops 24 hours a day, with the ability to set high and low alarms for each parameter. A flashing display lets you know if your parameters move away from the optimum, allowing you to make the important adjustments quickly and effectively....

$396.78 $555.70 -29%

Out of stock

Bluelab Combo Meter Plus | Measures pH, Conductivity & Temperature

Product Code:

BLBMETCOMPLUS

Bluelab Combo Meter PlusMeasures pH, Conductivity & TemperatureAn all-in-one, convenient portable solution for accurate measurement of pH, conductivity, and temperature in nutrient solution. The battery-powered, lightweight unit can be used anywhere, anytime to measure critical parameters related...

$396.71 $550.11 -28%

In Stock: 24

Bluelab Combo Meter | 6.5ft Probe Cable

Product Code:

BLBMETCOM

Bluelab Combo Meter6.5ft Probe CableA convenient and portable all-in-one solution. This meter measures pH, conductivity, and temperature. The easy to read screen and push button operation makes it simple to choose your preferred parameter to display. This meter can be used anytime and anywhere to...

$337.05 $467.38 -28%

In Stock: 40

GroStar GS2 Soil pH Pen

Product Code:

AI31020

AI31020 - GroStar GS2 Soil pH Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH 4 solution (50ml bottles of each) • KCL soaking solution (10ml bottle) • Cleaning brush • Hole dibber • Lanyard...

$212.78 $256.99 -17%

In Stock: 141

Bluelab Soil pH Pen

Product Code:

BLBPENSOILPH

Bluelab Soil pH PenKnow that your nutrients will be made consistently available to your plants. The Bluelab Soil pH Pen provides a pH and temperature reading of media including soil, coco and rockwool. It works in solutions too. Accurately monitor and adjust pH levels right from the palm of your...

$207.80 $288.16 -28%

In Stock: 13

Bluelab pH Probe Inline | 3/4in NPT Thread - Use with 1in Adapter

Product Code:

BLBPROBPHIN

Bluelab pH Probe Inline3/4in NPT Thread - Use with 1in AdapterA replaceable double-junction pH probe for your Bluelab Guardian Monitor Connect Inline. Double-junction probe reduces reference contamination, extending longevity. Fully waterproof, fast sensor response ensures quick and easy accurate...

$207.80 $288.16 -28%

In Stock: 29

Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible

Product Code:

TRCPPH3

TrolMaster (PPH-3) Heavy Duty Nutrient pH Sensor for Aqua-X System TrolMaster's new PPH-3 pH probe has been improved in multiple ways. The new PPH-3 features a reduced diameter protective sleeve and threaded body that allows the probe to be installed into standard 3/4" PVC tee fittings. The...

$198.31 $219.45 -10%

In Stock: 8

Inline pH Sensor, Heavy Duty

Product Code:

TRCPPH2

TrolMaster (PPH-2) Heavy Duty Inline pH Sensor for Aqua-X System The TrolMaster pH probes provide accurate and reliable monitoring on the pH of the water being monitored by the Aqua-x. The PPH-2 probe is a commercially rated probe and it connects to the Aqua-x via the AMP-2. It is intended to...

$176.87 $197.40 -10%

In Stock: 11

Bluelab Multimedia pH Meter | 6.5ft Probe Cable

Product Code:

BLBMETMULTI

Bluelab Multimedia pH Meter6.5ft Probe CableCombine the Bluelab Multimedia pH Meter and Bluelab Leap pH Probe to take fast accurate measurements in nutrient solution, soil, coco coir, rockwool, potting mix and many other media types. Calibration is simple with one push button on the meter and...

$168.42 $255.74 -34%

In Stock: 118

GroStar GS2-E replacement Soil Spear pH electrode

Product Code:

AI58020

AI58020 - GroStar GS2-E replacement Soil Spear pH electrode • Spear pH Probe measures pH and temperature in nutrient solution, soil, coco coir, rockwool, and many other media types • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance...

$150.68 $181.99 -17%

In Stock: 101

GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

Product Code:

AI21040

AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH4 calibration solution (50ml bottle each) • 2.77 EC calibration solution...

$148.20 $178.99 -17%

In Stock: 200

Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters

Product Code:

BLBPROBPHLEAP

Bluelab Leap pH ProbeFor Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH MetersGet the fundamentals of growing right by getting accurate, direct pH measurements in any substrate in a matter of seconds. The reinforced spear-tip allows fast, direct measurement in in soil,...

$144.18 $199.92 -28%

In Stock: 41

Hanna GroLine Waterproof Hydroponic pH Tester

Product Code:

HIHI98118

Hanna GroLine Waterproof Hydroponic pH TesterThe GroLine HI98118 pH/temperature tester is our latest pocket meter for measuring the pH of a hydroponic nutrient solution. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98118 has a very...

$133.99 $134.99 -1%

Out of stock

Bluelab pH Pen Meter | Measures pH and Temperature

Product Code:

BLBPENPH

Bluelab pH Pen MeterMeasures pH and TemperatureHandheld pH meter provides a compact, quick, and handy way to manage the success of your crops to ensure maximum uptake of nutrients. A key parameter that affects nutrient uptake is whether your solution is acid or alkaline - this is measured in the...

$124.28 $172.35 -28%

In Stock: 346

GroStar GS1 pH Pen

Product Code:

AI11010

AI11010 - GroStar GS1 pH Pen Lab grade instruments designed specifically for growers! Includes: • 2-year warranty (instrument) • 1-year warranty (probe) • pH 7 & pH4 calibration solution (50ml bottle each) • KCL storage solution (10ml bottle) • Lanyard and user manual Features: •...

$98.99 $115.99 -15%

In Stock: 285

Bluelab Combo Meter pH Replacement Probe | pH probe

Product Code:

BLBPROBPH

Bluelab Combo Meter pH Replacement ProbepH probeDependable double-junction pH probe technology that's built to last. Double-junction probe reduces reference contamination, extending longevity. Fast sensor response ensures quick and accurate measurements. Effective in solutions of 0.2 EC and above.

$91.48 $126.85 -28%

In Stock: 433

Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in

Product Code:

DILPH200

Dilution Solutions Pro HM Digital pH Meter7.3in x 1.3in x 1.3inThe Pro HM digital pH meter with get you the results you are looking for. The pH meter is designed for testing and monitoring your precious crop. Easily measure pH and temperature of water.

$85.95 $99.95 -14%

In Stock: 340

GroStar GS4-E replacement pH/EC combo electrode

Product Code:

AI58040

AI58040 - GroStar GS4-E replacement pH/EC combo electrode • Measures pH, conductivity (EC and PPM) and temperature • Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability • Premium probe technologies and materials ensure high...

$66.23 $79.99 -17%

In Stock: 89

GroStar GS1-E replacement pH electrode

Product Code:

AI58010

AI58010 - GroStar GS1-E replacement pH electrode • Replacement GS1 probe measures pH and temperature • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance • Low-resistance lithium glass membrane • double junction structure...

$42.21 $50.99 -17%

In Stock: 101

HM Digital PH-80 pH/Temperature Meter

Product Code:

HMDPHM80

The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. FEATURES Measures pH and temperature One-touch automatic digital...

$38.53 $46.50 -17%

In Stock: 124

Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in

Product Code:

DILPH80

Dilution Solutions HM Digital pH Tester6in x 1.7in x .7inThe Eco HM digital pH tester will help you get your desired results. Easily measure Easily measure conductivity, pH, and temperature of water.

$38.36 $49.95 -23%

Out of stock

HM Digital Replacement pH Sensor Probe for HM-500

Product Code:

HMDSPP5

HM-500 Replacement pH probe 2 Meter / 80 inch cable length Includes pH storage solution, 6-month warranty

$31.88 $59.99 -47%

Out of stock

Milwaukee Instruments pH600 Digital pH Pen

Product Code:

MIPH600

DIGITAL. SIMPLE. COMPACT. Fast, accurate results with digital LCD readout Easy measurement: just place the probe in the sample, gently stir and wait for the reading to stabilize Simple one-point calibration with an easy-to-use trimmer located on the back of the pH tester to protect...

$30.39

In Stock: 255

Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration

Product Code:

MIPH600BX

pH Tester with 1 point manual calibration, ± 0.2 pH accuracy, range: 0.0 pH to 14.0 pH. Full-range pH tester. 30-day warranty, snap-over protective case, 7.01 calibration solution, and calibration screwdriver are all included with unit.

$28.58 $30.00 -5%

In Stock: 101

Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm

Product Code:

HIHI7031L

Hanna EC Conductivity Calibration Solution1, 413 µS/cmThe 1413 µS/cm calibration solution is best suited for general use. This solution is also available in combined kits with HANNA pH 7 buffer for easy calibration of multiparameter instruments.

$26.79 $26.99 -1%

In Stock: 4

Luster Leaf Rapitest Light & Moisture Meter | Dual Tester

Product Code:

LUS1830

Luster Leaf Rapitest Light & Moisture MeterDual TesterInstantly tells you when to water your plants and indicates how much light they need. Helps prevent over and under watering as well as poor growth. Includes a plant care booklet that gives individual needs for over 150 plants.

$21.74 $29.99 -28%

In Stock: 20

Minimum purchase for "Luster Leaf Rapitest Light & Moisture Meter | Dual Tester" is 6.

GroStar pH Probe Maintanence Kit

Product Code:

AI61170

All-in-one maintanence kit provides everything you need to maintain, clean and store your GroStar pH probe Kit Includes : 3M KCL storage solution (4oz.) Cleaning solution (8oz.) CalPod solution organizer Probe cleaning brush Wash bottle

$19.86 $23.99 -17%

In Stock: 89

Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0

Product Code:

LUS1845

Luster Leaf Rapitest Digital Soil pH MeterResults From 3.5 - 9.0Provides an easy to read, instant result, digital read-out. It measures and displays the acidity/alkalinity of garden and container soil. Batteries are required and included.

$15.41 $21.29 -28%

In Stock: 492

Minimum purchase for "Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0" is 12.

SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH

Product Code:

SPPSP80002

SUNPACK 2-Function Plant Sensor Meter2-Function - Measures Soil Moisture & pHEasily test your garden's condition with the SUNPACK 2-Function Plant Sensor Meter. The meter measures soil moisture as well as soil pH to ensure your gardening success.

$12.46 $15.79 -21%

In Stock: 30

Minimum purchase for "SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH" is 10.

Hydrofarm Active Air 3-Way Meter

Product Code:

HYFMGMLP1

Hydrofarm Activeair 3 Way Moisture, Light and pH Meter is durable, easy to read, suitable for indoor or outdoor use, and no batteries required.

$10.29 $14.99 -31%

In Stock: 79

Active Air 2-Way pH & Moisture Meter | 1ct

Product Code:

HYFMGMP1

Active Air 2-Way pH & Moisture Meter1ctMoisture readings register on a scale of 0 (dry) to 10 (moist), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate.

$9.30 $13.99 -34%

In Stock: 37

Active Air 2-Way Moisture/pH Meter

Product Code:

MGMP1

Gardeners can conveniently test moisture and pH levels with the handy Active Air 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist). pH readings between pH 3 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out...

$8.17 $11.84 -31%

In Stock: 1097