Bluelab Replacement Parts
Genuine Bluelab Replacement Probes, Electrodes & Parts
Keep your Bluelab instruments performing at lab-grade accuracy with genuine OEM Bluelab replacement parts. Bluelab probes and electrodes are consumable components — pH electrodes have a finite lifespan and will eventually require replacement even with perfect maintenance. Using genuine Bluelab replacement parts ensures full compatibility, restores factory-specified accuracy, and protects your instrument warranty.
Replacement Parts Available
- pH Replacement Probes — Genuine Bluelab pH electrodes for the pH Pen, pH Meter, Combo Meter, and Guardian Monitor; restores full pH measurement accuracy
- EC / Conductivity Replacement Probes — Conductivity probe replacements for Bluelab EC meters and Combo Meter
- Temperature Sensors — Replacement temperature probes and sensors compatible with Bluelab combo and monitor instruments
- Probe Guards & Shrouds — Protective shrouds and guards for pH and EC probes to prevent breakage during use
- Storage Caps & Electrode Cups — Replacement caps and cups for safe probe storage and transportation
- Probe Care Kits & Calibration Solutions — Everything needed to calibrate, clean, and store Bluelab probes correctly
Compatible Bluelab Instruments
- Bluelab pH Pen
- Bluelab pH Meter
- Bluelab Combo Meter (pH + EC + Temperature)
- Bluelab Guardian Monitor & Guardian Monitor Connect
- Bluelab PULSE Multipurpose Meter
- Bluelab EC Meter & EC Pen
- Bluelab Pro Controller & pH Controller
- Bluelab Truncheon Nutrient Meter
When to Replace Your Bluelab Probe
- pH readings are slow to stabilize or consistently drift after calibration
- Calibration requires adjustment beyond the normal range (>1 pH unit offset)
- Probe is physically damaged — cracked, scratched sensing bulb, or broken junction
- Probe is more than 12–18 months old in active hydroponic use
- Readings are erratic or unstable despite fresh calibration solution and proper storage
Always use genuine Bluelab replacement probes — third-party probes may not meet Bluelab’s factory accuracy specifications and can affect instrument calibration. Browse genuine parts below, in stock and ready to ship.
