Product Description
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1.41 mS/cm Calibration Solution:
Used to calibrate EC/PPM for GroLine meters when they are in standard calibration mode. QuickCal combo solutions can be used instead to calibrate both pH and EC/PPM at the same time, this is done by placing the meter in QuickCal calibration mode.
Note: GroLine HI98331 Soil Test EC/Temp Substrate tester must be calibrated in the 230 mL bottle size and NOT in the packets, this is due to its special electrode design.
