Bluelab pH PenPlus

Bluelab pH PenPlus

The Bluelab pH PenPlus is a premium handheld meter designed to provide fast and highly accurate pH and temperature measurements while introducing one major innovation: a fully replaceable probe.

Instead of replacing the entire meter when the probe naturally wears over time, growers simply install a new Bluelab pH ProbePlus, extending the instrument's lifespan and reducing long-term operating costs.

Replace the Probe, Not the Meter

Every pH probe gradually loses accuracy through normal use. With conventional handheld meters, this usually means replacing the entire device.

The Bluelab pH PenPlus changes that approach. Its screw-fit replaceable probe allows you to restore factory-level performance within seconds while keeping the original meter.

Professional pH and Temperature Measurement

The PenPlus provides accurate pH measurements together with nutrient solution temperature displayed in either °C or °F.

Automatic Temperature Compensation (ATC) ensures consistent measurement accuracy regardless of changes in solution temperature.

Double-Junction Probe Technology

The replaceable probe features a durable double-junction design, providing excellent measurement stability and improved resistance when testing concentrated nutrient solutions.

This construction delivers reliable performance for demanding growing environments.

Built for Professional Growing

Certified to IP68, the pH PenPlus is completely waterproof and dustproof, making it suitable for intensive daily use in grow rooms, reservoirs and hydroponic systems.

Its rugged construction is designed to withstand the conditions encountered in professional cultivation.

Simple Maintenance

The threaded probe system allows fast replacement without special tools.

The protective silicone cap contains KCl solution and an internal sponge that keeps the probe properly hydrated between uses, helping maximise probe life and maintain measurement accuracy.

Smart Everyday Features

The Bluelab pH PenPlus includes a bright backlit display, hold-reading function, automatic power-off to preserve battery life, and a convenient 30-day calibration reminder.

Its simple two-point calibration procedure ensures reliable results with minimal effort.

Suitable for Every Growing System

The pH PenPlus is ideal for soil, coco, hydroponics, aeroponics and any cultivation method requiring precise nutrient solution management.

For complete nutrient monitoring, pair it with the Bluelab Conductivity Pen to measure both pH and EC/ppm.

Bluelab pH PenPlus Specifications

Brand: Bluelab

Product: pH PenPlus

Measures: pH and temperature

Probe: Replaceable Bluelab pH ProbePlus

Technology: Double-junction probe

Temperature Units: °C and °F

Temperature Compensation: Automatic (ATC)

Calibration: Two-point calibration with 30-day reminder

Functions: Hold reading, auto-off and backlit display

Protection: IP68 waterproof and dustproof

Probe Cap: KCl-filled silicone cap with hydration sponge

Applications: Soil, coco, hydroponics and nutrient solutions