Banggood

I just received it, I haven't tested it yet, but it's a quality item

De ótima qualidade.

Entrega rápida 15 dias, produto como descrito.

Many time to arrive... Work well.

Chegou em perfeito estado mas ainda não testei

Ótimo

Parece que funciona, marca bien el líquido nuevo e indica que el viejo esta para cambiar

Seems to work fine, tested on different kind of brake fluid and it looks like it actually detect different water content

Всё супер,работает.яркие светодиоды.Проверил разные машины,показания отличаются от норм до замены жидкости.Рекомендую

Looks like a nice little tool. It controls the conductivity of the brake fluid, which is proportional to the level of water contamination. The LEDs show this level. I tried it on my old 22 year old car that had a change of 1 wet brake 10 years ago and it shows the effect.