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A hardy, compact pH and temperature pen Perfect for quick and easy pH and temperature readings direct from your solution   Features Fully wate...

Bluelab Conductivity Pen A compact and hardy handheld solution Accurate and customizable measurements Providing quick and accurate readings at t...

Bluelab pH Controller Wi-Fi Monitoring and control from your phone With built-in Wi-Fi capability, if enabled the Bluelab pH Controller Wi-Fi ca...

Bluelab Soil pH Pen A robust and versatile handheld solution Accurate measurements, every time This hardy soil pH pen measures in increments of 0....