Horticultural specialists engaged in hydroponics, the practice of growing plants in water-based mineral nutrient solutions, need to ensure their mixes are of optimal pH levels. If they are too acidic or alkaline, the growth of plants could be impeded. ETI supports these endeavours with its range of pH and temperature measuring kits. Ideal for hydroponics applications, they are used to measure the pH levels in water-based solutions. As pocket-sized systems, they are ideal for everyday use.