This Elecrow 4-channel RF remote control module pairs a 433MHz wireless receiver board with a 5-button RF remote controller. Each of the four latching relays provides passive (dry contact) output, allowing you to switch mains-powered appliances or DC loads up to 10A without additional circuitry. The module can also be controlled directly by a microcontroller via its standard interface.

The self-locking (latching) mode means each relay toggles on and off with successive button presses. LED indicators (D1–D4) show the status of each relay channel, plus a power LED (D5). The included remote provides a range of 15–30 metres.

Key Features

• 4 Latching Relay Channels – Self-locking mode with passive (dry contact) output
• 433MHz RF Wireless – 15–30 metre remote control range
• High-Current Relays – Rated up to 10A at 250VAC or 10A at 30VDC
• Microcontroller Compatible – Standard interface for direct MCU control
• LED Status Indicators – D1–D4 for relay status, D5 for power
• 5-Button Remote Included – Individual channel control plus all-off

Specifications

• Working Voltage – 5–5.5V DC
• Working Current – ~220mA
• Quiescent Current – ~6mA
• Max Load – 10A at 250VAC / 10A at 30VDC
• RF Frequency – 433MHz
• Remote Range – 15–30 metres
• Relay Mode – Self-locking (latching)
• Module Dimensions – 65 × 50 × 20mm

Package Contents

• 1× 4-Channel RF Receiver Module
• 1× 5-Button RF Wireless Remote Controller