W1 RF ASK Module Wireless Transmitter Plus Receiver Pair 433 or 434 MHz AB0191

Features

• 16 independent relay channels for multi-device control
• 5V operating voltage
• Built-in optocoupler isolation for enhanced protection
• High-current relay contacts for AC and DC load switching
• LED indicators for power and relay status
• TTL-compatible control inputs
• Screw terminal connections for secure wiring
• Suitable for industrial and home automation applications
• Compatible with Arduino, Raspberry Pi, ESP32, ESP8266, STM32, AVR, PIC, ARM, and DSP platforms
• Durable PCB design for long-term reliability