Bluelab OnePen Replacement Probe – Restore Precision to Your Monitoring

Keep your OnePen performing like new. The Bluelab OnePen Replacement Probe is the perfect solution for maintaining the accuracy and reliability of your Bluelab OnePen. Designed to seamlessly replace worn or damaged probes, this replacement ensures consistent, precise measurements of pH, EC, and temperature, so your plants always receive optimal care.

Why Choose the Bluelab OnePen Replacement Probe?

The Bluelab OnePen Replacement Probe offers the same trusted quality and performance as the original, making it easy to extend the life of your device without compromising on accuracy.

• Seamless compatibility: Specifically designed for the Bluelab OnePen.
• Precision measurements: Restores accurate readings for pH, EC, and temperature.
• Easy installation: Replace your old probe quickly and hassle-free.
• Durable design: Built to handle tough grow environments.

How to Replace

Replacing the probe on your Bluelab OnePen is quick and simple:

1. Carefully detach the old probe from your Bluelab OnePen device.
2. Connect the new replacement probe securely to the device.
3. Calibrate the new probe using Bluelab calibration solutions to ensure accuracy.
4. Begin monitoring with restored precision.

Product Specifications

• Type: Replacement probe for Bluelab OnePen
• Compatibility: Exclusively for Bluelab OnePen devices
• Durability: Waterproof and designed for grow room conditions
• Maintenance: Calibrate regularly to maintain accuracy

Why Bluelab?

Bluelab is synonymous with precision and reliability. The OnePen Replacement Probe ensures your device continues to deliver the high-quality readings you depend on. Whether you're a professional grower or a hobbyist, this replacement keeps your OnePen performing at its best.

Order Yours Today

Restore your Bluelab OnePen to peak performance with the Replacement Probe. Click below to return to the Add to Cart section and ensure your monitoring remains accurate and reliable.

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Shipping Information

High-quality replacements deserve exceptional service. Orders to the US and Canada arrive in just 2–10 business days. Spend over $125, and shipping’s on us—it’s our way of saying thank you (conditions apply). For details, see our Shipping Policies.

Returns & Exchanges

Your satisfaction matters. Return your purchase within 30 days, hassle-free, as long as it’s unopened and in its original condition. Learn more in our Returns & Exchanges Policies. Shop confidently—your peace of mind is guaranteed.