uncontaminated solution for every calibration

Generous Capacity — 750 mL (26 fl oz) keeps you hydrated longer

Hanna storage solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle

01 solutions for 2-point calibration

the outer ceramic surface can be gently cleaned with a soft brush under running water to remove accumulated surface deposits and restore flow rate

Hanna GroLine HI981413-00 Nutrient Dosing System - Automated EC Controller with Probe lab testing equipment uncontaminated solution for every calibrationHanna GroLine HI981413 00 Nutrient Dosing System Automated EC TDS Control for Hydroponics The Hanna GroLine HI981413 00 Nutrient Dosing System is engineered for maintaining precise fertilizer concentration in hydroponic nutrient solutions and irrigation water. This automated controller continuously monitors EC TDS levels and doses nutrients automatically to maintain optimal growing conditions. Simply insert the probe and injection valve in line with