Energy test pen - Mineral and Water Quality Testing

can distinguish between mineral water and pure water very quickly. It is pure water if there is no light. On the contrary, it is the mineral water if the light is on. High-quality energy test pen, which can distinguish between pure water, energy water and mineral water. Trace elements and minerals in water can increase the energy of water. Can be widely used in energy testing of various energy water machines. Specifications: Weight: 100 g Tests: minerals. Measurement range: 1 Measurement precision: 1 Supply voltage: 1.5 Resolution: 0 Contents: 1 water quality detector. MULTI-PURPOSE: Ideal for testing water quality or purity in water purifiers, water filters, drinking water, beverages, swimming pools, spas, aquariums, hydroponics, etc.