Bluelab Replacement pH Probe for Combo and pH Meters

Easy to clean due to its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free. Double junction reference provides longer life!

• Fully waterproof, submersible to 10 meters
• Quality BNC connection
• Tough polypropylene barrel
• Heavy duty thick wall glass stem
• Non-refillable gel junction
• pH Probe cleaning tool included
• 6-Month Warranty