It could be very good product if the electronic board inside is protected from water. But without protection it damaged at 3th tank of water (I used salt as emulgator for aromatic oil). Disassembling shows that galvanic process made salt's short-cirruts. So... I washed the board, cover it with UV-resin, now I expect long life for the device. Unfortunately I made no pictures during the recovery
I am not happy at all I expected my item cause it was paid and I got a msg that it was shipped but that was a lie because my order was cancelled tjats bad for business