HomeSuppliesHanna HI98304 4 EC tester probe: 19.993S/cm Hanna HI98304 4 EC tester probe: 19.993S/cm Category: Supplies Product ID: 23232 Description Description Hanna Related products Cable Ties 8″ UV Berry Knife Wood Hndle BLK727 5′ T-Post Green/White Celery Knife 12″ Modified S/S