All-in-one maintanence kit provides everything you need to maintain, clean and store your GroStar pH probe
Kit Includes:
The HM Digital Hydromaster EC/TDS Probe is a replacement part for the HydroMaster HM-500.
$34.59
Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, ...
$53.00
NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.
$7.87
The Autopilot Digital pH Controller (APCEPH1) accurately and reliably measures and controls the pH of any water-based solution, including hydroponic ...
$290.15
