{"product_id":"4-channel-aes-128-433mhz-relay-module-remote-keyfob-dc12v","title":"4-Channel AES-128 433MHz Relay Module \u0026 Remote Keyfob | 12V","description":"\n\u003ch2\u003e4-Channel AES-128 Encryption 433MHz Remote Control \u0026amp; Relay Controller\u003c\/h2\u003e\n\u003cp\u003eTake command of your garage door, smart home devices, lighting, and more with this powerful \u003cstrong\u003eDC 12V 4-Channel AES-128 Encrypted Relay Module\u003c\/strong\u003e paired with a compact \u003cstrong\u003e433.92MHz Keyfob Transmitter\u003c\/strong\u003e. 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.\u003c\/p\u003e\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This Remote Control System?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAES-128 Encryption:\u003c\/strong\u003e Industry-standard 128-bit encryption algorithm secures every signal between the keyfob and receiver module, preventing code grabbing or replay attacks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Independent Channels:\u003c\/strong\u003e Control up to 4 separate devices or zones from a single keyfob transmitter.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with RFT1C04 and RFT2D04 remote controls; supports up to \u003cstrong\u003e32 stored remote controls\u003c\/strong\u003e per receiver.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Working Modes:\u003c\/strong\u003e Choose from Non-locking, Self-locking, Interlocking, or 10-second delay — perfect for a wide range of automation scenarios.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Range Wireless:\u003c\/strong\u003e Reliable 30–40 meter (≈100–130 ft) operating range when the antenna is extended.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Load Capacity:\u003c\/strong\u003e Handles up to 10A\/250VAC, making it compatible with most standard relays, motors, and lighting loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Standby Current:\u003c\/strong\u003e The keyfob draws only 100nA in standby — your CR2302 battery will last for years.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Operates reliably from -40°C to 85°C, indoors or outdoors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelay Module Specifications (RFR2B04)\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13mA (all off) \/ 40mA (1 relay) \/ 66mA (2 relays) \/ 93mA (3 relays) \/ 119mA (4 relays)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDecoding Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAES-128\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReceiving Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOOK\/ASK\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e433.92 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReception Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-108 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Stored Remotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-locking, Self-locking, Interlocking, 10s Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10A\/250VAC, 10A\/125VAC, 10A\/30VDC, 10A\/28VDC, 10A\/12VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 × 54 × 28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85.3 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKeyfob Transmitter Specifications (RFT2D04)\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 3V (CR2302 button battery — not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~12mA transmitting \/ 100nA standby\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncryption Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAES-128\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModulation Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASK\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmitting Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;10 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmitting Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e433.92 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C ~ 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e63 × 36 × 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤17 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGarage doors \u0026amp; security doors\u003c\/li\u003e\n  \u003cli\u003eDC 12V home lighting \u0026amp; LED lighting systems\u003c\/li\u003e\n  \u003cli\u003eSmart home \u0026amp; home automation\u003c\/li\u003e\n  \u003cli\u003eElevators \u0026amp; encrypted locks\u003c\/li\u003e\n  \u003cli\u003eMotor reversing control \u0026amp; DC 12V motors (RS360)\u003c\/li\u003e\n  \u003cli\u003ePTZ camera control\u003c\/li\u003e\n  \u003cli\u003eRemote measurement \u0026amp; telemetry systems\u003c\/li\u003e\n  \u003cli\u003eFluorescent \u0026amp; general lamp switching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOption A: 1× 4-Channel AES Encryption Relay Module (RFR2B04)\u003c\/li\u003e\n  \u003cli\u003eOption B: 1× AES Encryption Remote Control Keyfob (RFT2D04)\u003c\/li\u003e\n  \u003cli\u003eOption C: 1× 4-Channel AES Encryption Relay Module + 1× AES Encryption Remote Control Keyfob\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: CR2302 battery is NOT included. Color may vary slightly due to screen calibration. Please allow ±1–3 cm due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About Wireless Security Standards\u003c\/h3\u003e\n\u003cp\u003eFor more information on wireless communication and encryption standards used in home automation and access control, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/cybersecurity\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Cybersecurity Resource Center\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How many keyfob transmitters can be paired with the RFR2B04 relay module?\u003c\/h4\u003e\n\u003cp\u003eA: The RFR2B04 4-channel AES relay module can store and recognize up to \u003cstrong\u003e32 individual remote controls\u003c\/strong\u003e, making it ideal for multi-user access scenarios such as shared garages or commercial entry points.\u003c\/p\u003e\n\u003ch4\u003eQ: What working modes does the 4-channel relay module support?\u003c\/h4\u003e\n\u003cp\u003eA: The module supports four flexible working modes: \u003cstrong\u003eNon-locking\u003c\/strong\u003e (momentary), \u003cstrong\u003eSelf-locking\u003c\/strong\u003e (toggle on\/off), \u003cstrong\u003eInterlocking\u003c\/strong\u003e (only one relay active at a time), and \u003cstrong\u003e10-second delay\u003c\/strong\u003e — allowing it to adapt to a wide variety of garage door, motor, and lighting control scenarios.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the AES-128 encryption on this remote control truly secure?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: What battery does the RFT2D04 keyfob require, and is it included?\u003c\/h4\u003e\n\u003cp\u003eA: The RFT2D04 keyfob transmitter requires a \u003cstrong\u003eCR2302 button cell battery (DC 3V)\u003c\/strong\u003e. The battery is \u003cstrong\u003enot included\u003c\/strong\u003e and must be purchased separately. Thanks to the ultra-low 100nA standby current, battery life is exceptionally long under normal usage.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How many keyfob transmitters can be paired with the RFR2B04 relay module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"What working modes does the 4-channel relay module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Is the AES-128 encryption on this remote control truly secure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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