The transmitter module is small, the operating voltage range is very wide (3V-12V), transmission power, low power consumption, widely used in simple data wireless transmission, wireless remote control, burglar alarm and other occasions. Scope of application: Long distance wireless remote control 2. All kinds of burglar alarm system; 3. All kinds of low-rate digital signal wireless transmission; 4. A variety of household appliances, intelligent toys, such as remote control. Technical indicators: Operating Voltage 3V-12V Working current Max ≤ 30mA (12V) Min ≤ 2mA (3V) Resonance mode SAW Modulation mode ASK / OOK working frequency 315MHz, 433.92MHz optional, Special frequency can be customized Frequency error ± 150kHz (max) Transmit power 50mw Transmission rate ≤ 10Kbps Comes with code PT2262 encoding Antenna length 24 cm (315 MHz), 18 cm (433.92 MHz)