Batteries not included The Essentials EC Pen Digital Hydroponics Meter Tester is a versatile and durable tool for monitoring the nutrient levels in your hydroponic system. This waterproof and shock-resistant meter is designed for outdoor use and can be reused multiple times. The organic-based liquid form makes it suitable for all-purpose use, providing accurate readings in both indoor and aquaculture environments. With its power-saving features and easy-to-use digital display, this essential tool helps ensure the health and growth of your plants.
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