Rechargeable Dissolved Oxygen Pen with 5 Meter Cable Liquid & Weight Measuring preventing contaminants from affecting plant

preventing contaminants from affecting plant health and yields

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making it more sound absorbing and rustproof

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Rechargeable Dissolved Oxygen Pen with 5 Meter Cable Liquid & Weight Measuring preventing contaminants from affecting plantThis Dissolved Oxygen meter is a pen style tool that measures dissolved oxygen and temperature in water. High sensitivity and accurate readings are enabled by a thin membrane kit and calibration in air. With a rechargeable environment friendly battery, the device has a 5m cable for easy manipulation. It supports manual salinity and barometric pressure compensation and C F automatic temperature compensation built in. A big LCD with adjustable