Hanna Calibration fluid pH 4.01 bottle 500ml.
The Hanna Calibration Solution pH 4.01 (500 ml bottle) is an essential liquid for reliably calibrating pH meters in marine aquariums. This high-quality calibration solution from Hanna Instruments ...
The Hanna Calibration Solution pH 4.01 (500 ml bottle) is an essential liquid for reliably calibrating pH meters in marine aquariums. This high-quality calibration solution from Hanna Instruments is known for its precision and stability, ensuring you can always rely on accurate measurement results.
Why is calibration so important?
In a marine aquarium, a stable pH value is crucial for the well-being of corals, fish, and other inhabitants. Regularly calibrating your pH meter prevents measurement deviations and ensures that your water parameters are exactly correct. With the pH 4.01 calibration fluid, you can accurately adjust your measuring equipment, even with frequent use.
- Very suitable for both digital and analog pH meters
- Indispensable for serious aquarists and professionals
- Suitable for all brands of pH meters
- Consistent quality and long shelf life
Application and ease of use
The convenient 500 ml bottle makes it easy to perform multiple calibrations without waste. The liquid is ready for immediate use and features a clear batch code and expiration date, ensuring optimal performance at all times.
- Ideal for regular maintenance of your measuring equipment
- Provided with clear instructions on the label
- Suitable for use in both freshwater and saltwater aquariums
Quality of Hanna Instruments
Hanna is known worldwide for its laboratory quality and reliability. The pH 4.01 calibration fluid is produced according to strict standards and has been specially developed for demanding aquarists and laboratories. This ensures you are always guaranteed a stable and reliable calibration.
- Guaranteed accuracy to 0.01 pH
- Packaged in a sturdy, leak-proof bottle
- Long shelf life with proper storage
Technical specifications
- Contents: 500 ml
- pH value: 4.01 at 25°C
- Brand: Hanna Instruments
- Article number: HI-7004L
With Hanna Calibration Solution pH 4.01, you ensure reliable measurements and a healthy marine aquarium. A smart investment for every aquarium enthusiast who values precision and quality.

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Hanna
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Above € 50,- free delivery in NL & BEIn stock Ordered before 16:00, shipped today *
The Hanna Calibration Solution pH 4.01 (500 ml bottle) is an essential liquid for reliably calibrating pH meters in marine aquariums. This high-quality calibration solution from Hanna Instruments ...
Hanna
Ocean Store
Ocean Store is a modern webshop with a large selection of reef aquarium equipment, supplements and food for your (marine) aquarium. We excel in reachability, service and speed. Not only in delivery of your ordered goods, but also in the adequate answering of your (marine) aquarium related questions. We are happy to share our passion for reef aquariums with you!
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