package arrived very fast seller very recommended, it is the second one I buy, the first one arrived without connectors and related connecting wires. You have to pay attention to the polarity of the transducers, the one closest to the cone is the positive, moreover, you should disassemble the transistors 13009 and put some paste on the heatsinks, because it is totally missing. now I will try the second card as well and if it doesn't all work like the first one, I will update the review.

pacco arrivato molto velocemente venditore molto consigliato, è il secondo che compro, il primo è arrivato senza connettori e relativi fili di collegamento. Bisogna prestare attenzione alla polarità dei trasduttori, quello più vicino al cono è il positivo, inoltre, bisognerebbe smontare i transistor 13009 e mettere della pasta sui dissipatori, perche manca totalmente. ora proverò anche la seconda scheda e se non sarà tutto funzionante come la prima, aggiornerò la recensione.

package arrived very fast seller very recommended, it is the second one I buy, the first one arrived without connectors and related connecting wires. You have to pay attention to the polarity of the transducers, the one closest to the cone is the positive, moreover, you should disassemble the transistors 13009 and put some paste on the heatsinks, because it is totally missing. now I will try the second card as well and if it doesn't all work like the first one, I will update the review.

ultrasonic driver + 2x transducer as described; PROS: looks OK, well packed, all items included, delivered within a few days by courier from CZ; CONS: there is no documentation like schematic or connnection diagram included so you have to guess or reverse engineer PCB

ultrasonic driver + 2x transducer as described; PROS: looks OK, well packed, all items included, delivered within a few days by courier from CZ; CONS: there is no documentation like schematic or connnection diagram included so you have to guess or reverse engineer PCB

ultrasonic driver + 2x transducer as described; PROS: looks OK, well packed, all items included, delivered within a few days by courier from CZ; CONS: there is no documentation like schematic or connnection diagram included so you have to guess or reverse engineer PCB

Good quality!

Good quality!

Good quality!

Great pricing and fast shipping. The Box itself was ok but, due to insufficient packaging, the transducers damaged the fuse holder and capacitor on the board.

Great pricing and fast shipping. The Box itself was ok but, due to insufficient packaging, the transducers damaged the fuse holder and capacitor on the board.

Great pricing and fast shipping. The Box itself was ok but, due to insufficient packaging, the transducers damaged the fuse holder and capacitor on the board.

A pictures says all

A pictures says all

A pictures says all

ok

ok

ok

Damaged by the BRT courier

danneggiati dal corriere BRT

Damaged by the BRT courier

Produto chegou e está funcionando, foi instalado numa cuba de aço inoxidável com epoxi e fiação ficou a meu gosto. Creio que precise de resfriamento ativo pra ficar confortável se usado por mais de 5 minutos.

Produto chegou e está funcionando, foi instalado numa cuba de aço inoxidável com epoxi e fiação ficou a meu gosto. Creio que precise de resfriamento ativo pra ficar confortável se usado por mais de 5 minutos.

Produto chegou e está funcionando, foi instalado numa cuba de aço inoxidável com epoxi e fiação ficou a meu gosto. Creio que precise de resfriamento ativo pra ficar confortável se usado por mais de 5 minutos.

Received within 2 weeks in good condition. Equally mounted .Works Perfect!!!!! Thank you, Banggood.

Binnen 2 weken ontvangen in goede conditie . En gelijk gemonteerd .Werkt Perfect !!!!! Bedankt Banggood .

Received within 2 weeks in good condition. Equally mounted .Works Perfect!!!!! Thank you, Banggood.

They look very nice, however I haven't tested them yet.

They look very nice, however I haven't tested them yet.

They look very nice, however I haven't tested them yet.