

Special PRICE!
Apera 8oz pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS/cm, 12.88 mS/cm), 4oz Storage Solution for pH/ORP Electrodes, plus Apera's CalBox for easy calibration
The Apera Instruments AI1105 pH/EC Calibration Buffer Solution Kit includes two 8oz bottles of pH buffer solutions (pH 4.00 and pH 7.00), and two 8oz bottles of conductivity (EC) standard calibration solutions (1413 μS/cm and 12.88 mS/cm), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Apera's unique CalBox, which helps users to organize all the solutions in one place and create no more mess in the calibration process.
All the buffer solutions are standardized against NIST certified references at 25°C (77°F). It's ideal for the calibration of all kinds of pH and conductivity meters. Since pH and conductivity value is affected by temperature, the temperature & pH/conductivity reference charts are provided on the bottle labels for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes.
All the solutions are double-sealed, not subject to the DOT shipping restrictions. The expiration date is printed on each bottle. 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. MSDS documents are downloadable.
- Standardized against NIST certified references at 25°C (77°F), ideal for the calibration of all types of pH and conductivity meters
- Double-sealed, 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. Expiration date and Temperature & pH/conductivity reference chart provided for reference
- Apera's unique CalPod included. No more mess for your meter's calibration
- The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes
- Non-hazardous product (MSDS is downloadable)
- Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.


About Us
Apera Instruments provides scientific electrochemical instruments and sensors for measuring pH, ORP, conductivity, TDS, salinity, dissolved oxygen, turbidity, and ISE with our industry-leading technologies, quality control system, and customer service.
We have been focused on the development and manufacture of electrochemical instruments and sensors since 1991. Millions of Apera products are being used by customers in over 50 countries. All the products are CE and RoHS certified and are manufactured in our ISO 9001:2015 certified factory.
For over 29 years, we consistently dedicate ourselves to providing more reliable and more user-friendly instruments and sensors for our customers, a goal we continue to strive for.

Special PRICE!

Apera 8oz pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS/cm, 12.88 mS/cm), 4oz Storage Solution for pH/ORP Electrodes, plus Apera's CalBox for easy calibration

The Apera Instruments AI1105 pH/EC Calibration Buffer Solution Kit includes two 8oz bottles of pH buffer solutions (pH 4.00 and pH 7.00), and two 8oz bottles of conductivity (EC) standard calibration solutions (1413 μS/cm and 12.88 mS/cm), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Apera's unique CalBox, which helps users to organize all the solutions in one place and create no more mess in the calibration process.
All the buffer solutions are standardized against NIST certified references at 25°C (77°F). It's ideal for the calibration of all kinds of pH and conductivity meters. Since pH and conductivity value is affected by temperature, the temperature & pH/conductivity reference charts are provided on the bottle labels for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes.
All the solutions are double-sealed, not subject to the DOT shipping restrictions. The expiration date is printed on each bottle. 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. MSDS documents are downloadable.
- Standardized against NIST certified references at 25°C (77°F), ideal for the calibration of all types of pH and conductivity meters
- Double-sealed, 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. Expiration date and Temperature & pH/conductivity reference chart provided for reference
- Apera's unique CalPod included. No more mess for your meter's calibration
- The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes
- Non-hazardous product (MSDS is downloadable)
- Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

About Us
Apera Instruments provides scientific electrochemical instruments and sensors for measuring pH, ORP, conductivity, TDS, salinity, dissolved oxygen, turbidity, and ISE with our industry-leading technologies, quality control system, and customer service.
We have been focused on the development and manufacture of electrochemical instruments and sensors since 1991. Millions of Apera products are being used by customers in over 50 countries. All the products are CE and RoHS certified and are manufactured in our ISO 9001:2015 certified factory.
For over 29 years, we consistently dedicate ourselves to providing more reliable and more user-friendly instruments and sensors for our customers, a goal we continue to strive for.