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$7.74 USD
ONA Block – Fresh Linen is used as a stand-alone odor neutralizer.
It is safe to use and environmentally friendly.
The ONA Block is ideal for small areas such as closets, foyers, attics, cars, gym bags, boats, kitchens, garbage cans, cupboards or vents.
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$6.91 USD
(Wide Spectrum) Measures 3-10 pH.
The Hydroponic pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. This kit covers a pH range of 3-10 measuring in 0.1 increments.
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$5.81 USD
The CannaMax Calibration Solution 1000ppm is a very necessary part of a growers toolbox. Fill a small clean container with only enough solution to cover the probe end. Adjust meter. Rinse probe with clean water. Dispose of used Calibration solution.
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$7.71 USD
Calibration Solution pH7 is a very necessary part of a growers toolbox.
- Fill a small clean container with only enough solution to cover the probe end.
- Adjust meter. Rinse probe with clean water.
- Dispose of used Calibration solution.
- Repeat monthly
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$7.71 USD
Calibration Solution pH4 is a very necessary part of a growers toolbox.
- Fill a small clean container with only enough solution to cover the probe end.
- Adjust meter. Rinse probe with clean water.
- Dispose of used Calibration solution.
- Repeat weekly or monthly
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$9.18 USD
PRODUCT DESCRIPTION
- Signals soil moisture level
- Indicates soil acidity/alkalinity
- Includes watering needs for many plants
- Product specifically designed to be used only in soil
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$11.58 – $19.32 USD
Calibration Solution 2.77EC is a very necessary part of a growers toolbox.
Required for the calibration and checking of Pens meters and controllers.
Manufactured specific to the calibration process and referenced to high class laboratory standards.
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$11.58 – $20.82 USD
BlueLab Calibration Solution pH7 is a very necessary part of a growers toolbox.
They are required for the calibration and checking of Pens, meters and controllers.
Manufactured specific to the calibration process and referenced to high class laboratory standards.
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$11.58 – $20.82 USD
BlueLab Calibration Solution pH4 is a very necessary part of a growers toolbox.
Required for the calibration and checking of Pens, meters and controllers.
Manufactured specific to the calibration process and referenced to high class laboratory standards.
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$427.46 USD
Main Features
- Built-in Wi-Fi (with option to disable)
- High/low pH, temperature and conductivity alarms
- Non-volatile memory – keep settings through power loss
- Plant-safe green LEDs with adjustable display brightness
- 2 metre / 6.6 foot measurement probe cables
- 110 – 240 VAC (Mains powered)
- Interchangeable power plug
- Replaceable pH Probe (with BNC connection)
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Sale!

$31.60 Original price was: $31.60.$22.12Current price is: $22.12. USD
Bluelab Probe Care Kit – pH & Conductivity. Everything you need to clean, hydrate and calibrate pH probes as well as clean and test conductivity (ppm/EC) probes. The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth. Probe cleaning and correctly storing pH probes ensures you…
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$17.42 USD
Everything you need to clean and maintain your conductivity probes
Your Bluelab Probe Care Kit – Conductivity contains:
- Probe care instructions
- Two 18 ml single-use sachets of Bluelab 2.77 EC Conductivity Standard Solution
- One plastic cup
- Bluelab Conductivity Probe Cleaner
- Chamois for cleaning your conductivity probe
- Packaging may vary
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$24.01 USD
Bluelab Probe Care Kit – pH Everything you need to clean, hydrate and calibrate pH probes. The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth. Probe cleaning and correctly storing pH probes ensures you get the most accurate readings possible and will maximize the…
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$332.22 USD
- Measures pH, conductivity / nutrient
- Lightweight and portable
- Large easy to read display
- Simple push button pH calibration
- No calibration required for conductivity and temperature
- Replaceable double junction pH probe included
- 2 x AAA alkaline batteries included
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$116.15 – $147.13 USD
- Fully waterproof
- Auto on/off function
- No calibration required
- Daylight readable blue LED’s
- Battery operated – 3 x AA batteries included
- No buttons, switches or knobs
- Provided with EC, CF, ppm 700 and ppm 500 scales
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$94.48 USD
Bluelab ppm Pen The ultimate handy solution for measuring conductivity (EC or ppm) and temperature! The Bluelab EC or ppm Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed. To feed plants well, we need to know what we’re feeding…