Contains four (4) batteries per pack, 6 packs per case.
These sachets are for use with the Hanna HI9813-6 Gro'Chek Portable pH/TDS/EC/Temp Meter. The Cal-Check feature of this meter utilizes the Cal-Check Solution in order to determine if the probe is in need of cleaning or replacement. The sachets should only be used once, then discarded, in order to avoid contamination and improper readings.
The electrolyte level in refillable electrodes should be checked before performing any measurements. If the level is low, refill with the proper electrolyte solution to ensure the correct electrode performance. This simple maintenance helps guarantee the efficiency and precision of your refillable electrodes.
Electrolyte solutions are also available in FDA compliant bottles.
The Probe on Bluelab meter, monitor, Truncheon or controller must be kept clean. If the probe is contaminated or dirty, it affects the accuracy. The probe surface is where the instrument takes the reading of the solution and the information is sent back from the probe to the electronic brain of the instrument. Cleaning is a very easy task and it prolongs the life of the truncheon.

