Apera EC Calibration Kit

The Apera EC Calibration Kit is a must-have for any serious cultivator. With its 2.77 EC conductivity standard calibration solution, you can easily ensure the accuracy of your readings. This non-hazardous, American-made product is perfect for maintaining the cleanliness and longevity of your EC/ppm probe. Keep it stored in a cool place and out of reach of children.