4-Channel AES-128 433MHz Relay Module & Remote Keyfob | 12V
4-Channel AES-128 433MHz Relay Module & Remote Keyfob | 12V
4-Channel AES-128 Encryption 433MHz Remote Control & Relay Controller
Take command of your garage door, smart home devices, lighting, and more with this powerful DC 12V 4-Channel AES-128 Encrypted Relay Module paired with a compact 433.92MHz Keyfob Transmitter. Built on military-grade 128-bit AES encryption, this system delivers far superior communication security compared to older remote control protocols like 1527 or 226X — keeping unauthorized access out and giving you total peace of mind.
Made in Mainland China.
Why Choose This Remote Control System?
- AES-128 Encryption: Industry-standard 128-bit encryption algorithm secures every signal between the keyfob and receiver module, preventing code grabbing or replay attacks.
- 4 Independent Channels: Control up to 4 separate devices or zones from a single keyfob transmitter.
- Wide Compatibility: Works with RFT1C04 and RFT2D04 remote controls; supports up to 32 stored remote controls per receiver.
- Flexible Working Modes: Choose from Non-locking, Self-locking, Interlocking, or 10-second delay — perfect for a wide range of automation scenarios.
- Long-Range Wireless: Reliable 30–40 meter (≈100–130 ft) operating range when the antenna is extended.
- High Load Capacity: Handles up to 10A/250VAC, making it compatible with most standard relays, motors, and lighting loads.
- Ultra-Low Standby Current: The keyfob draws only 100nA in standby — your CR2302 battery will last for years.
- Wide Temperature Range: Operates reliably from -40°C to 85°C, indoors or outdoors.
Relay Module Specifications (RFR2B04)
| Operating Voltage | DC 12V |
| Operating Current | 13mA (all off) / 40mA (1 relay) / 66mA (2 relays) / 93mA (3 relays) / 119mA (4 relays) |
| Decoding Method | AES-128 |
| Receiving Mode | OOK/ASK |
| Wireless Frequency | 433.92 MHz |
| Reception Sensitivity | -108 dBm |
| Max Stored Remotes | 32 |
| Working Modes | Non-locking, Self-locking, Interlocking, 10s Delay |
| Maximum Load | 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC |
| Dimensions | 75 × 54 × 28 mm |
| Weight | 85.3 g |
Keyfob Transmitter Specifications (RFT2D04)
| Operating Voltage | DC 3V (CR2302 button battery — not included) |
| Operating Current | ~12mA transmitting / 100nA standby |
| Encryption Method | AES-128 |
| Modulation Mode | ASK |
| Transmitting Power | <10 dBm |
| Transmitting Frequency | 433.92 MHz |
| Operating Temperature | -40°C ~ 85°C |
| Dimensions | 63 × 36 × 14 mm |
| Weight | ≤17 g |
Common Applications
- Garage doors & security doors
- DC 12V home lighting & LED lighting systems
- Smart home & home automation
- Elevators & encrypted locks
- Motor reversing control & DC 12V motors (RS360)
- PTZ camera control
- Remote measurement & telemetry systems
- Fluorescent & general lamp switching
What's in the Box
- Option A: 1× 4-Channel AES Encryption Relay Module (RFR2B04)
- Option B: 1× AES Encryption Remote Control Keyfob (RFT2D04)
- Option C: 1× 4-Channel AES Encryption Relay Module + 1× AES Encryption Remote Control Keyfob
Note: CR2302 battery is NOT included. Color may vary slightly due to screen calibration. Please allow ±1–3 cm due to manual measurement.
Learn More About Wireless Security Standards
For more information on wireless communication and encryption standards used in home automation and access control, visit the NIST Cybersecurity Resource Center.
Frequently Asked Questions
Q: How many keyfob transmitters can be paired with the RFR2B04 relay module?
A: The RFR2B04 4-channel AES relay module can store and recognize up to 32 individual remote controls, making it ideal for multi-user access scenarios such as shared garages or commercial entry points.
Q: What working modes does the 4-channel relay module support?
A: The module supports four flexible working modes: Non-locking (momentary), Self-locking (toggle on/off), Interlocking (only one relay active at a time), and 10-second delay — allowing it to adapt to a wide variety of garage door, motor, and lighting control scenarios.
Q: Is the AES-128 encryption on this remote control truly secure?
A: Yes. AES-128 (Advanced Encryption Standard, 128-bit key) is recognized globally as a highly secure encryption standard used in commercial and government applications. It is far more resistant to code grabbing or signal replay attacks than older rolling-code or fixed-code protocols like 1527 or 226X, giving your system a strong security advantage.
Q: What battery does the RFT2D04 keyfob require, and is it included?
A: The RFT2D04 keyfob transmitter requires a CR2302 button cell battery (DC 3V). The battery is not included and must be purchased separately. Thanks to the ultra-low 100nA standby current, battery life is exceptionally long under normal usage.