High Accuracy PH ORP Temp Portable MV Tester Sensor — Water Pen Monitor for Aquarium & Swimming Pool, Digital Display, Plug-and-Play

Precision instrument for high-accuracy measurement of PH, ORP and temperature in water. Compact, lightweight water-pen form factor makes it easy to carry and use for aquarium and swimming pool checks. Large, easy-to-read digital display gives quick results at a glance. Built with a sensor designed for reliable, long-term performance across various water environments. Suitable for home use, laboratory applications, and professional water-quality testing; plug-and-play for immediate operation.