Features: - This instrument is a positive and negative electrochemical instrument (it is a steel element and a hollow aluminum element), it is small and long, strong and durable. - This is a quality TDS test for testing TDS level, reading and recording procedures. - In fact, we quickly tested and found several side effects at concentrations of 0 to 9990 ppm. - The electrolyzer test can be used in the production of organic substances, such as the production of drinkable food, for family use, individual use, etc. Specifications: Material: ABS + Aluminum Height: 10.7 × 9.7 × 2.6 cm Iron rod length: 7 cm Measuring plate: 50–200 mg/l Rated voltage: 220 V / 50 Hz Price type: EU price Set contents: 2 x Eau de toilette 1 x Electrolyzed TDS