Hanna Instruments pH/EC/TDS Multiparameter Probe for use with HI9814 GroLine Combo Meter Synthetic Growth Nutrients That color change is normal

That color change is normal and shows healthy growth

purified water and a food-grade thickening agent Boveda Replacement Every ~3 months

and other low pH feeders

Total Weight: 4

Hanna Instruments pH/EC/TDS Multiparameter Probe for use with HI9814 GroLine Combo Meter Synthetic Growth Nutrients That color change is normalHanna Instruments pH EC TDS Multi parameter Probe for use with HI9814 The HI1285 7 is a 3 in 1 pre amplified multi parameter probe that measures pH, EC TDS, and temperature within a single polypropylene body. The pH portion of this probe is constructed with a cloth junction, maintenance free polymer gel electrolyte, and a low temperature glass sensing bulb. The EC TDS portion of this probe utilizes two stainless steel pins for an amperometric