Bluelab Multimedia pH Meter is a fully waterproof, easy-to-clean tool designed to measure pH levels in various growing substrates like soil, coco coir, and hydroponic solutions. With no calibration needed and a removable shroud for hassle-free cleaning, it ensures your plants receive the right pH balance for optimal nutrient uptake and superior health. Perfect for monitoring pH levels before and during plant growth to prevent nutrient deficiencies or dehydration.