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Calibration Kits

We offer a broad range of calibration standards and kits for accurate, fast and easy microsensor calibration – both in the laboratory and in the field.

The kits contain standards and accessories for seamless calibration using a simple snap-on Calibration Cap onto the protection tube of sensors, allowing you to test and calibrate the sensor while still in the protection tube.

The standards comes as single-use containers ensuring freshly prepared calibration buffers for accurate sensor calibration. This eliminates the uncertainties of stored standards and the hazzle of preparing standards before each measurement.

The Calibration Kits are complete kits with no need for lab supplies, making them perfect for field studies as well.

  • Complete kits for ease-of-use
  • Accurate and reliable calibration
  • Calibrate while sensor is in protection tube using our unique Calibration Cap
  • Cost-effective – no labor and no need for large batches
  • No need for specialized chemicals and gases
  • Lab and field use

Note: for certain sensor customizations and adaptations the kits are not suitable. Please consult the Specifications for information about compatibility.

Oxygen sensor zero-oxygen calibration kit

The zero-oxygen calibration kit is providing 10 pcs of ready to use vials for zero calibration of our oxygen sensors.

The oxygen microsensor or oxygen optodes are calibrated by a 2-point calibration and the second calibration point, the high calibration point, is performed using our CAL300 calibration chamber.

The buffer contains a slightly alkaline ascorbate ensuring a trustworthy zero-oxygen reading for your daily calibration routine – both in the lab and in the field.


pH electrode calibration kit

Our pH sensor calibration kit comes with ready to use and certified buffers for a two-step calibration of our pH microelectrodes at pH 4.01 and pH 9.18.

The kit includes a unique and simple calibration setup for use with a reference electrode, but also for our combination electrodes.

The kit contains standards for 10 complete calibrations and ensures accurate and easy calibration of your pH electrodes.


H2S and SULF sensor calibration kit

The Hydrogen Sulfide calibration kit is for both our SULF and H2S sensor versions. Use of the kit eliminates the tedious and time-consuming preparation of standards with oxygen-free inert gas or reductants to make anaerobic solutions.

Validating H2S standards usually also includes the need to buy expensive and toxic H2S gas mixes, but all of that is eliminated by using our H2S calibration kit.
Easy and cost effective!

The kit comes with reagents for 10 single-use calibrations, is non-hazardous, and with a validated H2S concentration towards a certified gas mixture.


N2O sensor calibration kit

We offer two versions of our N2O senor calibration kit. A standard concentration version to be used with our Calibration Cap for seamless calibration, and the Calkit-N2O High - a high concentration version to be used with our N2O-R and High Range sensor.

With the N2O sensor calibration kits you do not need to buy expensive gas mixes and pay rental fees on gas flasks, thus our kits gives you an easy and cost-effective way to calibrate N2O sensors.

The kit comes with 10 single-use vials for standard calibration or 10 vials for high concentration.The mixes are validated against certified gas mixtures for accurate and reproducible calibrations.

Redox electrode calibration kit

Introducing a simple one-point calibration for Redox electrodes! The Redox electrode calibration kit comes with 10 ready-to-use vials. The kit includes a unique and simple calibration setup for use with a reference electrode, but also for use with our combination electrodes.

The solution is non-hazardous and eliminates the need for stocking quinhydrone and preparing fresh quinhydrone redox buffer.

Calibrating using the Redox electrode calibration kit gives a simple one-point calibration towards the Standard Hydrogen Electrode (SHE) based on a calibration buffer with a certified redox potential.


Ordering information


Product Description
Calkit-O2 Oxygen sensor zero-oxygen calibration kit
For 10 calibrations
Calkit-pH pH electrode calibration kit
For 10 calibrations
Calkit-H2S H2S and SULF sensor calibration kit
For 10 calibrations
Calkit-N2O N2O sensor calibration kit
For 10 calibrations
Calkit-N2O High N2O sensor calibration kit for High Range or N2O-R
For 10 calibrations
Calkit-Redox Redox electrode calibration kit
For 10 calibrations


Calibration Kit Specifications

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