The Bluelab pH PenPlus is a compact handheld pH and temperature meter designed to deliver reliable measurements with the added benefit of a replaceable probe. Built for continuity and long-term use, it combines Bluelab measurement confidence with straightforward calibration, maintenance and probe replacement.

The replaceable double-junction pH and temperature probe is designed for dependable performance, while the screw-cap fitting allows quick replacement when required. A KCl-filled silicone cap with an internal sponge helps keep the probe hydrated between uses.

Key Features

• Measures pH and temperature
• Double-junction pH probe for reliable measurements
• Replaceable pH and temperature probe
• Screw-cap probe design for quick replacement
• Temperature display in °C or °F
• Hold-reading function
• Bright backlit display for easy viewing
• Simple 2-point calibration
• 30-day calibration reminder
• Auto-off function helps conserve battery life
• IP68 dustproof and waterproof rating
• Integrated lanyard
• Waterproof silicone probe cap
• KCl-filled probe cap with internal sponge helps maintain probe hydration
• Compact handheld design

Replaceable Probe Design

The pH PenPlus features a replaceable combined pH and temperature probe, allowing the sensing element to be renewed without replacing the complete meter. The screw-cap design makes probe changes quick and straightforward, helping extend the useful life of the instrument.

Simple Calibration & Everyday Use

A straightforward 2-point calibration system helps maintain measurement accuracy, while the built-in 30-day reminder provides a useful prompt for routine recalibration. The hold function allows readings to be retained on screen for easier recording.

Built for Wet Environments

With an IP68 dustproof and waterproof rating, the pH PenPlus is designed for regular use in hydroponic, horticultural and other wet working environments.

Ideal For

• Hydroponic nutrient solutions
• Horticultural water testing
• Reservoir monitoring
• Growers requiring both pH and temperature readings
• Users who want a serviceable meter with a replaceable probe