12V 1 / 2 / 4 / 8 Channel Relay High Low Level Optocoupler Module For PI
Čistota prevedenia plošného spoja je podstatne lepšia než som obdržal z aliexpressu. Purity conversion PCB be of the essence superior than I am reached from Aliexpress. Slovakia Žilina. Slovensko.
A falta de probar todo parece correcto.
Very good relay module - most flexible of all (allows you to select high or low signal to turn the relay on) and really like the fact that instead of pins for VCC and signals it uses screws terminal block. As a bonus - a bright LED letting you know if the relay is connected to power source. Very pleased and highly recommend.
excellent value, good product.
fast shipping, functional module at a good price
good as described and cost wise well what can one say,
Excellent!! Received in good condition.
The product arrived in time
All OK
пришло быстро. Все работает