Calibration and cleaning solutions for freshwater aquarium

pH 7.01 standard solution for calibrating pH meters.

pH 4.01 standard solution for calibrating pH meters.

230ml bottle of pH 7.01 buffer solution for calibrating pH meters.

500ml bottle of pH 7.01 buffer solution for calibrating pH meters.

Checker® HC – HI755-11 Seawater Alkalinity Photometer Calibration Solutions provide a simple solution to validate the Checker® HC – HI755 Seawater Alkalinity Photometer which has a range of 0 to 300ppm CaCO3. This high-quality set of standards is manufactured in our state-of-the-art facilities and comes complete with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date for traceability when certifying the Checker®HC photometer.

Checker® HC – HI758-11 Marine Calcium Calibration Solutions provide a simple solution to validate the Marine Calcium Checker® HC – HI758 which has a calcium range of 200-600 ppm. This high-quality set of standards is manufactured in our state-of-the-art facilities and comes complete with a Certificate of Analysis. The Certificate of Analysis indicates the batch number, reference values and expiry date for traceability when certifying the Checker®HC.

Standard solutions for the HI774 device from Hanna Instruments . It allows you to check the correct operation of the device.

Seawater Nitrate Standard Solutions – HI781-11 provides a simple solution for checking the HI781 Seawater Nitrate Checker .

This high-quality set of standards is manufactured in our state-of-the-art facilities and comes complete with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date to ensure traceability when certifying the Checker®HC® Mini Photometer.

Pre-order, available end of November.

Hanna Instruments ' HI713-11 Phosphate Calibration Solution is a set of high quality standards for users to validate the Checker®HC – HI713 Narrow Range Phosphate Monitor.

Standard solution for dkH in seawater – HI772-11 provides a simple solution for checking HI772 dKH .

This high-quality set of standards is manufactured in our state-of-the-art facilities and comes complete with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date to ensure traceability when certifying the Checker®HC® Mini Photometer.

Calibration solution, 1413 µS/cm from Hanna Instruments .

Hanna Instruments 1382 mg/L TDS Calibration Solution .

pH 10.01 standard solution for calibrating pH meters.

Standard solution for HI783 mini seawater photometer . Provides a simple solution to verify the accuracy of measurements from the HI783 photometer.

This high-quality standards set is manufactured in our state-of-the-art facilities and comes with a certificate of analysis. The certificate of analysis provides the batch number, reference values, and expiration date to ensure traceability during the certification of the Checker®HC® Mini Photometer.

Standard solution for the HI784 mini ammonia photometer . Provides a simple solution for verifying the accuracy of measurements from the HI784 photometer.

This high-quality standards set is manufactured in our state-of-the-art facilities and comes with a certificate of analysis. The certificate of analysis provides the batch number, reference values, and expiration date to ensure traceability during the certification of the Checker®HC® Mini Photometer.

The HI782-11 seawater nitrate standard solutions provide a simple solution for checking the HI782 seawater nitrate checker .

This high-quality standards set is manufactured in our state-of-the-art facilities and comes with a certificate of analysis. The certificate of analysis provides the batch number, reference values, and expiration date to ensure traceability during the certification of the Checker®HC® Mini Photometer.