Wireless 4 channel RF Remote Control Switch DC12V 4CH relay Receiver Module

The Wireless 4-Channel RF Relay Receiver Module is a multifunction wireless switching solution designed for remote control and automation systems. Operating on the widely used 433MHz RF frequency, the module enables reliable wireless communication between the included RF transmitter and the 4-channel relay receiver board.

Powered by DC12V, the module supports multiple operating modes including momentary, toggle, latching, and time delay functions, providing flexible control options for different automation applications. The intelligent learning code system allows easy pairing between the transmitter and receiver while improving signal security and stability.

The module features high receiving sensitivity for stable long-distance operation and supports both dry contact and voltage output modes. With its compact PCB size, protective shell, and wide operating temperature range, the receiver module is suitable for both indoor and outdoor electronic control systems.

This wireless relay controller is commonly used in smart home systems, remote lighting control, motor switching, industrial automation, alarm systems, and DIY RF projects.

Specifications

• Product Type: Wireless RF Relay Receiver Module
• Channels: 4 Channels
• Operating Voltage: DC12V
• Working Frequency: 433MHz / 315MHz
• Quiescent Current: 5mA
• Receiving Sensitivity: -104dBm
• Modulation Mode: ASK
• Matching Method: Intelligent Learning Code
• Output Type: Dry Contact / Voltage Output
• Operating Modes:
  • Momentary
  • Toggle
  • Latching
  • Time Delay (5s / 10s / 15s / 20s)
• Working Temperature: -30°C to +80°C
• PCB Dimensions: 68.2 × 48.2 mm
• Housing: Included protective shell
• Remote Frequency: 433MHz RF transmitter

Applications

• Wireless home automation
• Remote lighting control
• Garage door systems
• Wireless motor control
• Security and alarm systems
• Industrial automation equipment
• Smart electronic switching
• DIY RF remote projects
• Remote pump and fan control
• Access control systems

OPERATION

1. Momentary Mode: pressing one time the learning key button on the receiver board ( Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting momentary mode successfully .

2. Toggle Mode: pressing two times the learning key button on the receiver board( Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting toggle mode successfully .

3. Latching Mode:pressing three times the learning key button on the receiver board ( Led indicator on receiver board will signaling simultaneously ),then press first remote button ,follow on second remote button , signaling three times by remote’s LED indicator informs about setting latching mode successfully ( first button stands for on , second button stands for off ).

4. 2CH momentary + 2CH Toggle :pressing four times the learning key button on the receiver board(Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting 5-second delay successfully .

5. 2CH Momentary + 2CH Latching :pressing five times the learning key button on the receiver board ( Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting 10-second delay successfully .

6. 2CH Toggle + 2CH Latching :pressing six times the learning key button on the receiver board( Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting 15-second delay successfully .

7. 2CH Latching + 2CH Latching :pressing seven times the learning key button on the receiver board( Led indicator on receiver board will signaling simultaneously ),then press any of the remote button , signaling three times by remote’s LED indicator informs about setting 15-second delay successfully .

8. Deleting existing remote controls data: pressing eight times the learning key button on the receiver board , the LED indicator on receiver board will flash for eight times , the existing remote controls are deleted successfully .

TERMINAL INSTRUCTIONS  

+V  —  Positive pole input

GND —  Negative pole input

1   —KC1 Normal Closed of relay

2   —KC1 Common of relay

3   —KC1 Normal Open of relay

4   —KC3 Normal Closed of relay

5   —KC3 Common of relay

6   —KC3 Normal Open of relay

7   —KC2 Normal Closed of relay

8   —KC2 Common of relay

9   —KC2 Normal Open of relay

10   —KC4 Normal Closed of relay

11   —KC4 Common of relay

12   —KC4 Normal Open of relay

NOTES

1. Please do not charged operation, you should shut off the power, and operation after testing and correct electricity.

2. Please promptly change battery when remote control voltage is insufficient,  (when the battery voltage is insufficient, generally get close transmitting )

3. Please pay attention to avoid metal mask,large equipment ,strong interference electromagnetic filed when using wireless RF products,and avoid too short distance between the remote control and receiver board .

4. Please avoid abnormal using of the product.Abnormal using will reduce product performance and life, when seriously it may damage the products and even make danger for your safe .