Bluelab pH PenPlus | Replaceable Probe pH & Temperature Pen | IP68 Waterproof

*NEW* Minimise downtime, extend product life, and support confident decision-making. The pH PenPlus delivers industry-leading Bluelab pH confidence, engineered for continuity. A reliable pH and Temperature Pen with replaceable probe. Features: Double-junction pH probe for reliable measurements Replaceable pH/temperature probe Temperature in °C or °F Hold-reading function Screw-cap probe design for quick replacement KCl-filled silicone cap with internal sponge maintains probe hydration Integrated lanyard with waterproof silicone probe cap Bright backlit display for easy reading Simple 2-point calibration with 30-day reminder Auto-off function to conserve battery IP68 dustproof and waterproof rating Compact handheld design Technical specifications Specifications Technical pH Range0.0–14.0 Resolution0.1 Accuracy at 25°C / 77°F±0.1 °C / °F 0–50 / 32–122 1 / 1 ±1 / ±2 Operating Environment Solution 0.2 EC and above 0 – 50 °C / 32 – 122 °F (Do not use or store outside this temperature range) General Power 1x AAA alkaline battery Warranty Detail* Comes with a 2-year limited warranty; 6-months for the Bluelab pH ProbePlus. Details available at bluelab.com/product-warranty Box Contents Equipment 1x Bluelab pH PenPlus with replaceable pH and Temperature probe Solution Sachets, 18 ml / 0.6 fl.oz. 1x Bluelab pH 7.0 Calibration Solution, single-use 1x Bluelab pH 4.0 Calibration Solution, single-use 1x Bluelab KCl Storage Solution The Bluelab pH PenPlus. pH confidence you can swap back in. The difference is simple. When natural probe wear occurs, the probe can be replaced, not the whole pen. Simply swap out the probe to quickly restore performance. Built to IP68 standards, dustproof, waterproof, and designed for demanding environments, the pH PenPlus encourages long-term use while protecting your workflow and investment. The pH PenPlus is about readiness. Keeping a replacement probe on hand means less downtime, less disruption and continued confidence in every reading. Get the fundamentals of runoff right, every time Healthy plant growth starts with the right pH. In hydroponic and irrigated systems, plants can only access nutrients when the root zone stays within the right pH range. Measuring runoff helps you understand what is happening around the roots. It shows whether your nutrient solution is staying available to the plant, or whether the root zone is drifting too acidic or too alkaline for efficient nutrient uptake. By checking pH in your runoff, you can spot changes early, make informed adjustments, and keep your crop in the optimal range for healthy plant growth. Product manual