0% O₂ Calibration Capsules

For recommended 0% O₂ calibration of optical oxygen sensors. Each capsule results in 50mL calibration solution (PU=10).

Calibration Capsules (pH 2)

For obligatory acid calibration of optical pH sensors. Each capsule results in 100mL calibration solution (PU=10).

Calibration Buffer Capsules (pH 11)

For recommended basic calibration of optical pH sensors. Each capsule results in 100mL calibration buffer solution (PU=10).