Bluelab pH 4.0 Calibration Solution - 250 ml
Product Features / Benefits
- Contains 250 ml/8.4 fl oz
- Boost your pH products’ longevity with regular cleaning and calibration
Product Warranty Period Details
There is currently no applicable warranty for this product. Find out more about our product warranties.
Improve product longevity with regular calibration
How to calibrate your Bluelab pH products
If you want to improve your Bluelab pH product’s accuracy and longevity, you’ll need to get into the habit of regular cleaning and calibration.
Luckily, the easy-to-follow calibration process is the same for all Bluelab pH meters and pens.
After cleaning your pH probe, you’ll need to calibrate it with pH calibration solutions at two reference standards - 4.0 and 7.0 pH. Once calibrated, you can start measuring pH again immediately. You’ll need to recalibrate whenever you clean your pH probe and when your meter alerts you that a calibration is needed.
High-quality calibration solutions
Effective, affordable pH calibration
Bluelab pH 4.0 Calibration Solution - 250 ml is essential for use with all Bluelab pH products. All Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.
pH maintenance and care
Your one-stop pH shop
Bluelab pH 4.0 Calibration Solution is also available in 20 ml sachets and 500 ml bottles. To complete calibration, remember to stock up on Bluelab pH 7.0 Calibration Solution, which is available in 20 ml sachets, as well as 250 ml or 500 ml bottles.
Alternatively, our Bluelab Probe Care Kits contain everything you need to clean, maintain and calibrate your pH equipment, such as calibration solutions, KCl storage solution and more. You can also expand your toolkit with our pH accessories and replacement parts, including replacement pH probes, storage caps and carry cases.
Browse through our online shop to find exactly what you need.