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Made to order
Made to order

The maintenance solution will be KCI 100 ml

8,45
For pH electrodes, the SERA KCI maintenance solution prevents excessive wear and ensures

GHL PL-Cali pH9 (PL-0076)

11,95
pH 9 calibration solution for pH probes. Allows calibration of pH measurements in both fresh and hard water
Made to order

GHL PL-Cali pH7 (PL-0075)

11,95
pH 7 calibration solution for pH probes. Allows calibration of pH measurements in both fresh and hard water

GHL PL-Cali pH4 (PL-0074)

11,95
pH 4 calibration solution for pH probes. Allows calibration of pH measurements in both fresh and hard water

GHL PL-Cali 50mS (PL-0073)

12,95
Calibration fluid conductivity 50 mS/cm, 50 ml.

GHL PL-Cali 220mV (PL-0072)

12,95
 Redox calibration liquid 220mV, 50 ml.
Made to order

GHL PL-Cali 1.41mS (PL-0059)

12,95
Calibration fluid conductivity 1.41 mS/cm, 50 ml.

PROFLORA CO2 CALIBRATION SET

15,95
The JBL ProFlora CO2 Calibration Set is a complete electrode calibration kit for pH. This CO2 accessory for aquariums is a