433MHz 12V 1 Channel Relay Module Wireless Remote Control Switch

The 433MHz 12V 1 Channel Relay Module Wireless Remote Control Switch is a single-channel RF relay kit operating at 12V DC with a 433MHz receiver board carrying one SPDT relay output rated at 10A 250V AC and 10A 30V DC, and a matching 433MHz RF transmitter remote. The 1 channel relay module provides a control distance of up to 100 meters in open area, significantly longer than the 5-meter range on lower-cost PCB relay kits, making it suitable for across-room and within-premises wireless single-load switching without a WiFi or Bluetooth infrastructure.

The Relay Module Wireless Remote Control Switch provides NO (Normally Open), NC (Normally Closed), and COM relay terminals, allowing the single relay to function as a simple on/off switch on the NO contact, a fail-safe normally-closed switch on the NC contact, or a changeover switch for A/B circuit selection. The 433mhz relay remote control transmitter and receiver operate at 433MHz, which is within the unlicensed ISM band permitted for short-range devices in India. The 433mhz Module receiver supports configurable trigger modes — momentary, toggle, and latching — adjustable through the onboard learning button. One practical trade-off: the 433MHz band is shared with many other devices including alarm systems, garage door remotes, and weather sensors — occasional false triggering is possible in dense RF environments.

The non-obvious advantage of the 433mhz rf wireless transmitter receiver module over a WiFi relay is standby current — the 433MHz receiver consumes minimal standby power while waiting for a command, making it suitable for battery-backed emergency switching circuits. Available from StemVolt, this kit is ideal for engineers building single-load wireless switching systems and practical home automation electronics projects.

Related Products:

• Explore the NRF and RF Modules for wireless communication

• Checkout the 4-Channel RF Wireless Relay Remote Control Transmitter and Receiver Module

Features:

• 100-meter 433MHz range for within-premises single-load wireless switching
• 10A 250VAC relay handles AC mains light and appliance switching loads
• NO NC COM contacts support both on-off and changeover switching modes
• Momentary toggle and latch modes selectable via onboard learning button
• Minimal standby current suits battery-backed and always-on switch builds

Technical specifications:

 Applications:

• 433MHz 1 Channel Relay Module used for wireless single light remote switch
• College project uses 433mhz module for wireless relay control demo build
• Gate motor uses relay module wireless remote control switch for open-close
• Workshop uses 433mhz relay remote control for single machine start-stop build
• Home automation uses 433mhz wireless switch for standalone fan remote control

Package includes:

• 1 x 433MHz 12V 1 Channel Relay Module