433MHz RF Relay Wireless Switch DC 12V 1CH Receiver & Transmitter

433MHz Wireless RF Relay Switch — DC 12V 1-Channel Receiver & Transmitter

Take full control of your electrical equipment, door locks, lamps, and access control systems — all without running extra wiring. This 433MHz RF wireless relay switch kit includes both a receiver control panel and transmitters (remote control + exit button), giving you a flexible, reliable, and encrypted wireless switching solution for home, office, or commercial applications.

What's in the Kit

• Receiver / Control Panel — DC 12V powered relay module with up to 10A load capacity
• Remote Control Transmitter — Compact handheld unit for convenient wireless operation
• Exit Button Transmitter — Ideal for door access control and electromagnetic lock installations

Key Features

• 433MHz RF Communication — Stable signal transmission with approximately 50-meter range (environment-dependent)
• Rolling Code Encryption — Over one million rolling code combinations for secure, interference-resistant operation
• Up to 32 Transmitters — Pair up to 32 individual transmitters to a single receiver for multi-user access
• Two Operating Modes — Choose between timed mode (1–255 seconds) or toggle ON/OFF mode (press once to open, press again to close)
• Dry Contact (Relay) Output — Maximum 10A load; connects directly to your existing wiring to control lights, locks, doors, and more
• Wide Temperature Range — Operates reliably from -40°C to +70°C (-40°F to 158°F), suitable for indoor and outdoor use
• Low Power Consumption — Idle current: Exit Button <3µA; Control Panel <10mA
• Battery-Powered Transmitters — Uses a CR2032 3V lithium battery (not included) for the remote control and exit button

Technical Specifications

Common Applications

• Electromagnetic door locks and electric strike plates
• Remote-controlled lighting (lamps, LED strips, garden lights)
• Gate and barrier motor control
• Industrial machinery on/off switching
• Access control exit button replacement or supplement

Safety & Standards

For guidance on safe electrical installation practices, refer to the OSHA Electrical Safety guidelines. Always ensure your installation complies with local electrical codes and standards.

Frequently Asked Questions

Q: How many remote transmitters can I pair with a single 433MHz RF relay receiver?

A: You can pair up to 32 individual transmitters — including remote controls and exit buttons — to one receiver control panel. This makes the system ideal for multi-user or multi-point access control environments.

Q: What operating modes does the 433MHz RF relay switch support?

A: The relay switch supports two modes: Timed Mode, where the relay activates for a set duration between 1 and 255 seconds before automatically resetting, and Toggle (ON/OFF) Mode, where a single press turns the relay on and the next press turns it off — perfect for controlling lights or other devices that need to stay on indefinitely.

Q: Can this RF relay switch control an electromagnetic door lock?

A: Yes. The dry-contact relay output with up to 10A load capacity is well-suited for electromagnetic locks, electric strikes, and other access control hardware. Simply wire the relay output in-line with your lock power circuit and use the remote or exit button to trigger it.

Q: What batteries do the remote control and exit button transmitters use?

A: Both the remote control and the exit button transmitter are powered by a CR2032 3V lithium coin battery. Please note that batteries are not included and must be purchased separately.

Q: Is the 433MHz signal secure against code grabbing or replay attacks?

A: Yes. The system uses a rolling code encryption method with over one million unique code combinations, which rotates the transmission code with each use. This makes it highly resistant to signal interception and replay attacks compared to fixed-code systems.