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4-Channel Bluetooth Relay Module
$6.5000
In stock
SKU
REL-01-057
Volume discounts:
- +25 4 % $6.2400
- +50 6 % $6.1100
- +100 8 % $5.9800
- +300 10 % $5.8500
- +500 12 % $5.7100
Ships in 2-3 business days, then:
Free delivery in 12-15 days by Tracked Economic Shipping on orders over $100.
Free delivery in 7-10 days by Express Shipping on orders over $300.
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Adjustable Delay Timer Dual Relay with LED Display Previous 
The 4-Channel Bluetooth Relay Module is a wireless relay control module for switching four independent relays through Bluetooth. It supports BLE operation and uses the BlueSPP app for connection and command sending. The module is designed for remote control of electrical devices with a compact form factor and straightforward command-based operation. It provides NO and NC relay outputs for flexible switching configurations. Use it where Bluetooth-based relay control is required in electronics and automation projects.
Features of 4-Channel Bluetooth Relay Module
- Wireless Bluetooth relay control
- Four independent relay channels
- BLE supported
- NO and NC outputs
- Command-based operation
Specifications of 4-Channel Bluetooth Relay Module
- Operating voltage: 12V DC
- Average current: less than 100mA
- Relay channels: 4 independent relays
- Output signal: SPP - C Bluetooth serial
- Communication protocol: Bluetooth 2.1
- Relay output: Normally open (NO) and normally closed (NC) contacts
- Control distance: Up to 10 meters
- Dimensions: 63x64.5mm
How to Use 4-Channel Bluetooth Relay Module
- Apply 12V DC power to the module.
- Connect with the BlueSPP app on a smartphone.
- Send the relay control commands in command mode.
More Info
- BlueSPP app is required for connection and command sending.
- Control distance depends on the environment.
- Relay commands are available for all four channels.
| Interface Type | Wireless |
|---|---|
| Operating Voltage (V) | 12V |
| Operating Current (mA) | <100mA |
| Dimensions (mm) | 63x64.5mm |
| Mounting Type | Screw holes |
| Control Type | Relay (Electromechanical) |
| Channel Count | 4 |
| Control Signal | Wireless |
| Relay Type | Relay output |
| Display Type | None |
| Material | PCB |
| Input Type (AC/DC) | DC |
| Protocols | Bluetooth 2.1 |
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