• A red 1-channel relay module with a blue Songle relay, showing the high/low level trigger jumper and screw terminals for input and output.
  • The bottom view of a red 1-channel relay module PCB, showing the solder joints and clean circuit traces.
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1-Channel Relay Module with High/Low Level Trigger (5V/12V/24V)

1-Channel Relay Module with High/Low Level Trigger (5V/12V/24V)

HK$12.00
HK$12.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

Elevate Your Projects with Versatile Control

Easily control high-voltage and high-current devices—like lights, motors, and appliances—with our robust 1-Channel Relay Module. Designed for hobbyists and professionals alike, this module provides a reliable bridge between your low-voltage microcontroller (like an Arduino, Raspberry Pi, or ESP32) and high-power applications.

Key Features:

  • Versatile Voltage Options: Available in 5V, 12V, or 24V DC coil voltage models to match your project's power supply.
  • Flexible Triggering: A simple on-board jumper allows you to select between high-level (triggers when a high signal is sent) or low-level (triggers when a low signal is sent) logic.
  • Safe & Isolated: Features a built-in optocoupler to isolate your sensitive microcontroller from the high-voltage side, preventing damage and reducing signal interference.
  • Clear Status Indicators: Equipped with two LEDs: a power indicator (shows the module is powered) and a relay status indicator (lights up when the relay is active).
  • Easy Installation: Clearly labeled screw terminals for power (DC+, DC-, IN) and load (NO, COM, NC) make wiring simple and secure.

Specifications:

  • Channels: 1
  • Coil Voltage (Models): 5V, 12V, or 24V DC
  • Max Load Rating: 10A 250VAC / 10A 125VAC / 10A 30VDC / 10A 28VDC
  • Trigger Type: High/Low Level (Selectable via Jumper)
  • Interface (Input):
    • DC+: Positive power supply (VCC)
    • DC-: Negative power supply (GND)
    • IN: Signal trigger pin (High/Low)
  • Interface (Output):
    • NO: Normally Open
    • COM: Common
    • NC: Normally Closed
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