Your cart is empty.
GroStar GS1 pH Pen
$115.99
$90.99
AI58010 - GroStar GS1-E replacement pH electrode
• Replacement GS1 probe measures pH and temperature
• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance
• Low-resistance lithium glass membrane
• double junction structure uses blue gel electrolyte without the air bubble
• 1-year warranty