Pay in 4 interest-free payments of $9.75 Learn more
Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
This 2 Channel 12V Relay Module with Optocoupler meets the safety standard as the control and load areas have isolation grooves
It is used in Mobile phones
which are Green
Its Display count is 2000
28 inch) 0-100V Three Wire DC Voltmeter Red Panel
LM393- Electret Microphone Module Mini Arduino This 2 Channel 12V RelayLM393 Electret Microphone module uses LM393 as its main Op Amp and is a single channel signal output sensor module. LM393 module has 3 pins which are Out, GND and VCC. GND is connected to the ground and VCC is connected to the positive terminal of the power supply. Out is an Output pin. Out pin is high when it does not detect any sound. It goes low whenever it detects sound in its surroundings. Out pin is connected to the digital pin of the
US$ 633.00
US$ 35.00
US$ 18.00
US$ 25.00