Hello, I am satisfied with the materials received although a hardware broke down at the LCD. Knowing this type of component, I took the risk to disassemble, after analysis, it was improper assembly or production or during transport on the bus "2 son," I handed these components in place I put together the whole, and the display worked, and after having made the remark in a courteous Amazon, Amazon returned me 1 euro on a product 9 Here, I will explain why the note Use of this product is technical, I have a son who has an electric water heater, the heating element comprises 3 electric resistors in parallel, which means that given that the consumption of each 1000watts resistance in 220Volt = 4.5 amps, the entire water heater consumes 13.5A, I control this consumption through the ampere meter, we sum realized this defect because there was not enough hot water winters after verification 2 resistors were out of order, shortly after the warranty period, so it loses the benefit of the guarantee, with this system in service, the total current consumption of 3 resistors is displayed and is 13.5Ampère If resistance is out of order, the intensity drops to 9 Amps at the display, and obviously the fault becomes known and the guarantee can be pressed. Regards to all Joseph
