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![Bluelab Multimeter pH Meter pH measurement](http://www.senua-hydroponics.com/cdn/shop/files/99a5a14c-398a-411e-97a2-54ab037a38f3.jpg?v=1693556647&width=1600)
Bluelab Multimeter pH Meter pH measurement
Combine the Bluelab Multimedia pH Meter and Bluelab Leap pH Probe to take fast and accurate measurements in nutrient solution, soil, coco coir, rockwool, potting mix and many other media types.
![Bluelab Combi Meter](http://www.senua-hydroponics.com/cdn/shop/files/f128341e-5d6c-47d3-892f-f171af1143c9.jpg?v=1693556655&width=1600)
Bluelab Combi Meter
The fundamental parameters of pH, conductivity and temperature all play a pivotal role in driving optimal plant health. By regularly measuring the fundamentals, the Bluelab Combo Meter will enable you to optimise your plants’ nutrient uptake.
![Bluelab Combo Meter Plus](http://www.senua-hydroponics.com/cdn/shop/files/f237bce2-c837-4855-9a50-00dcfe2a0b5b.jpg?v=1693556678&width=1600)
Bluelab Combo Meter Plus
The Bluelab Combo Meter Plus measures pH, conductivity and temperature in substrates, nutrient reservoirs, run-off and water supply. What’s more, this meter can be used on the go, giving you fast and accurate readings when and where you need them.
![Bluelab Guardian Monitor](http://www.senua-hydroponics.com/cdn/shop/files/ac9cb335-1ea5-457d-95ed-82e5f3890e50.jpg?v=1693556691&width=1600)
Bluelab Guardian Monitor
Monitor your reservoir pH, Conductivity and Temperature with alerts on your phone when using the Wi-Fi capable Bluelab Guardian Monitor.
![BlueLab Ph Controller Connect](http://www.senua-hydroponics.com/cdn/shop/files/6d5d360c-ac89-4aca-96d9-fff87136313c.jpg?v=1693556712&width=1600)
BlueLab Ph Controller Connect
The fuss-free Bluelab pH Controller Connect will enable you to continuously maintain perfect pH levels in your reservoir, allowing you to walk away with complete peace of mind knowing that your crops are in safe hands. That’s because the Bluelab pH Controller Connect will automatically dose your reservoir 24/7 to ensure that key nutrients are soluble and therefore available to your plants at all times, creating the conditions for ideal nutrient uptake.
![BLUELAB PH 7.0 Calibration solution 500ml](http://www.senua-hydroponics.com/cdn/shop/files/8a5ac315-9c6f-44b7-8d32-7899e48c15f8.jpg?v=1693556591&width=1600)
BLUELAB PH 7.0 Calibration solution 500ml
Keeping your pH meter calibrated is essential for taking accurate readings and keeping your nutrient solution within the correct pH range. Bluelab's pH Calibration Solution allows you to accurately calibrate your pH meter.
![BlueLab PH Probe Storage Solution 100ml](http://www.senua-hydroponics.com/cdn/shop/files/1b4f6e70-3131-445f-b749-063d9d7189e5.jpg?v=1693556716&width=1600)
BlueLab PH Probe Storage Solution 100ml
Our Bluelab pH Probe KCl Storage Solution is a storage solution designed specifically for use with Bluelab pH Pens or pH Probes. Storage solution is used to ensure a pH probe is kept in ideal conditions during storage, while the probe is not in use. Typically, most storage solutions for pH probes contain a mixture of potassium chloride (KCl) and water. Some brands may contain small amounts of other ingredients. For this reason, we try to suggest using Bluelab pH Probe KCl Storage Solutions with all pH probes to avoid contamination from these other ingredients.
![Growth Technology PH Up and Down 250ml](http://www.senua-hydroponics.com/cdn/shop/files/e9370a75-861b-4a6c-825d-14cdc7d4abf6.jpg?v=1693556300&width=1600)
Growth Technology PH Up and Down 250ml
Potassium hydroxide 25%. Used to raise the pH of nutrient solutions. It is a very basic (alkaline) solution and should be handled with extreme caution. Phosphoric acid 81%. Used to lower the pH of nutrient solutions. It is a very acidic solution and should be handled with extreme caution.
![Essentials LAB Buffer 4 & 7 bundle pack for accurate 2-point calibration](http://www.senua-hydroponics.com/cdn/shop/files/db304b6c-79a2-427c-8690-e5ac2ae31d45.jpg?v=1693556561&width=1600)
Essentials LAB Buffer 4 & 7 bundle pack for accurate 2-point calibration
Pack Contains: Essentials Lab Ph Up 250ml Essentials Lab Ph Down 250ml Essentials Lab pH up is a 50% potassium hydroxide alkaline solution designed for adjusting the pH of your nutrient solution. Essentials Lab pH Down is an 81% phosphoric acid solution designed to effectively adjust the pH of your nutrient solution.
![Vitalink 250ml PH Down EC Calibration fluid](http://www.senua-hydroponics.com/cdn/shop/files/656aba93-4aa5-4efa-8e09-0a09ba861997.jpg?v=1699532675&width=1600)
Vitalink 250ml PH Down EC Calibration fluid
Vitalink 250ml PH Down EC Calibration fluid
![Bubblegen Circulate Oxygenate Nutrient Solution Tank](http://www.senua-hydroponics.com/cdn/shop/files/a73d8d38-3fe5-4531-9e20-0d670976a837.jpg?v=1693556940&width=1600)
Bubblegen Circulate Oxygenate Nutrient Solution Tank
A revolutionary way to circulate your and oxygenate your nutrient solution it removes the need for air stones and circulation pumps. - Submersible and quiet running - Oxygenates water efficiently - Additional tank circulation jets not required - No air stones required - Can operate with 1000 4000 LPH pumps - Works on vacuum rather than positive pressure so no addition heat generated - Supplied with 3 suction cups for fitting - Quick and easy installation
![Round Ceramic Airstone 100mm (4")](http://www.senua-hydroponics.com/cdn/shop/files/025d52d0-4a21-4ae6-a2f9-8e1483bfdf81.jpg?v=1715180830&width=1600)
Round Ceramic Airstone 100mm (4")
High quality air diffuser that helps to increase the oxygen content of all nutrient solutions. Simply attach to an Air Pump with a Silicon Airline (sold separately). Recommended for all systems!
![Cylinder Airstone - 50mm x 18mm](http://www.senua-hydroponics.com/cdn/shop/files/08ee012f-397e-43a6-9e2b-60b58e82adcf.jpg?v=1715180832&width=1600)
Cylinder Airstone - 50mm x 18mm
AIRSTONE - 50MM X 18MM