TIGREZY - High quality products and satisfactory customer service a reasonable price Features: -This instrument has positive and negative two-electrode rods (one is an iron rod and the other is an aluminum rod), it is small and light, strong and durable. -With TDS water quality test pen to test the TDS value of water, convenient reading and recording. -High precision, measuring range 0-9990ppm, quick test and obvious results. -The water electrolyzer test can be applied to water treatment industry, drinking water management, family, individual living, etc. Specification: Material: ABS + aluminum iron Size: Body length: about 10.7 × 9.7 × 2.6 cm Iron bar length: 7 cm Measuring range: 50–200 mg/l Rated voltage: 220V / 50Hz Plug type: EU plug Package Content: 2 x Water Electrolyzer 1 x TDS Electrolysis Pen Sold by pugad Shop