4-Channel 12V Relay Module, Low-Level Trigger, Optocoupler Isolated
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | Relay Module 12V (4 Channel) Low Level Trigger | 140 EGP | View in store |
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Lowest price recorded: 140 EGP
About this product
A 4-channel 12 V relay module with optocoupler input isolation and screw terminals (COM, NC, NO) for each channel. It is controlled by low-level input signals, so it can be driven from Arduino, AVR, PIC, ARM and similar microcontrollers to switch lamps, pumps and other loads. Each channel has power and operation indication.
Specifications
- Channels
- 4
- Relay coil voltage
- 12 V
- Trigger type
- Low-level (active low)
- Input isolation
- Optocoupler
- Terminals
- Screw terminals (COM, NC, NO)
Frequently asked questions
What is the price of 4-Channel 12V Relay Module, Low-Level Trigger, Optocoupler Isolated in Egypt?
4-Channel 12V Relay Module, Low-Level Trigger, Optocoupler Isolated currently costs 140 EGP in Egypt.
Where can I buy 4-Channel 12V Relay Module, Low-Level Trigger, Optocoupler Isolated in Egypt?
4-Channel 12V Relay Module, Low-Level Trigger, Optocoupler Isolated is available from Makers Electronics. Compare the offers above to find the best price.
How do I wire this module to an Arduino?
Connect the module's power inputs as labeled on the board, share ground with the Arduino, and connect each IN pin to a digital output. Because the module is low-level triggered, a channel energizes when its IN pin is pulled LOW. Connect your load across COM and NO, or COM and NC.
Can it be driven from 3.3 V or 5 V logic?
Check the input threshold of the module against your board's logic level before connecting directly. The inputs are optically isolated, which protects the control circuitry, but the signal must still be recognized as LOW by the module.
