AI58040 – GroStar GS4-E replacement pH/EC combo electrode
• Measures pH, conductivity (EC and PPM) and temperature
• Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability
• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance
• double junction structure uses blue gel electrolyte without the air bubble
• 1-year warranty
HM-500 Replacement pH probe2 Meter / 80 inch cable lengthIncludes pH storage solution, 6-month warranty
$41.51
The HM Digital Hydromaster EC/TDS Probe is a replacement part for the HydroMaster HM-500.
$34.59
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & ...
$32.70
Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, ...
$53.00
