Extech PH115 ExStik Replacement Refillable pH Electrode Module for Extech PH100/PH110 Meter

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Reliable Replacement Sensor – Keep your ExStik pH meter performing like new with this refillable electrode, designed for fast response and dependable accuracy in every reading. Refillable Design for Long Life – Unlike sealed electrodes, this refillable sensor extends service life and reduces costs, giving you a sustainable and professional solution. High-Quality Glass Bulb Accuracy – Equipped with a durable glass bulb tip that ensures precision across a wide pH range, making it ideal for critical lab and field testing. Easy Maintenance & Refilling – Simple to refill with electrolyte solution, minimizing downtime and keeping your meter calibrated and ready for use whenever you need it. Versatile Testing Applications – Perfect for laboratories, education, field research, food safety, environmental studies, and water quality testing in pools, aquariums, and treatment systems.