Shipping Weight: 1.36 Kg
Date first available: May 23 2019
Bestsellers Rank: #15 in Measuring Device
"The 2.77EC solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solution should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened."