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📊 Calibrate like a pro, grow like a boss!
This Bluelab pH Calibration Solution Kit includes two 500ml bottles of pH 4.0 and 7.0 solutions that are NIST traceable, ensuring precise and reliable calibration for pH pens and meters. Designed for hydroponics, gardening, aquariums, and pools, it extends device longevity with easy, ready-to-use formulas that maintain accuracy and save you time.
| ASIN | B01GQVSQGG |
| Best Sellers Rank | #17,764 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #21 in Lab pH Meters |
| Brand | Bluelab |
| Brand Name | Bluelab |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 1,142 Reviews |
| Included Components | One 500ml of ph4 and One 500ml of ph7 |
| Item Form | Liquid |
| Item Volume | 500 Milliliters |
| Manufacturer | bluelab |
| Model Number | BL-COMBO-1 |
| Molecular Weight | 32.06 |
| Molecular weight | 32.06 |
| Package Information | Bottle |
| Part Number | BL-COMBO-1 |
| Unit Count | 2.0 Count |
| Volume | 500 Milliliters |
M**J
Perfect
I followed the directions to the letter and the calibration solutions worked perfectly. I feel so much better about my grow knowing the reading I am getting are true readings. The solution hand my Blue Labs OnePen with perfectly calibrated and fast results
S**N
Good
Good
R**A
Works Well
I own the blue lab ph pen and EC meter, and these solutions are perfect for calibration of the pH pen. I bought large bottles, still working super well a year later, probably have enough to last me another 3 years of regular monthly calibration checks/calibrations. Between the nice test pen and these solutions my hydroponic results have improved. Good stuff.
M**G
Fast delivery, quality products
Fast delivery, quality products
M**L
Great value for the money
I do not dislike anything about this product is my first time using this product with a blue lab pH pen I’ve got to say it’s worth the money both these are 16.9 fl oz. This will probably last me the next 12 months.
P**N
Perfect!
Works perfect for recalibration of blue lab ph pen. What else could you ask for?
R**Y
Ph levels in water
The accuracy,easy of use and storage is why this works for me..
M**N
Use within 3 months of opening?
Both bottles state to use up within 3 months of opening. If you’re only calibrating one pen per month this won’t happen. What is the impact on calibration accuracy after 1 or 2 years with these solutions?
Trustpilot
2 weeks ago
5 days ago