BIO test pen is easy to operate, easy to carry and use The difference between water and energy water can be identified when you put the pen into the solution. Pen head releases mineral energy water, but water does not glow Applications: Energy water manufacturer, functional water manufacturer, electrolytic water manufacturer, ultrafiltration water filter, water filter with alkaline or mineralized filter, water inspection with energy cups, etc BIO tester pen is widely used for energy detection of various energy water machines and can also be used to check water and wine purity BIO test pens are used to detect differences in water, energy water, and mineral water. Generally, trace amounts and minerals in water can increase water energy, Manufacturer: NUEAYMS