The High Precision Digital pH Meter Pen by VIVOSUN is a portable and easy-to-use tool for measuring the water quality of your plants. With a clear digital display and metric measurements, this pH meter pen provides accurate readings for optimal plant growth. Powered by batteries and featuring a sleek yellow plastic design, this electric measuring technology ensures reliable results. Backed by a 1-year manufacturer warranty, this product is perfect for maintaining the health and vitality of your plants. Fish water etc
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