433MHz ASK Wireless Kit STX882 + SRX882

This 433MHz wireless module kit pairs the STX882 ASK transmitter with its matching SRX882 superheterodyne receiver, giving you a complete send-and-receive RF link straight out of the box. The STX882 stands out among low-cost ASK transmitters for its unusually high output power, reaching up to 100mW at 5V while staying compact and easy to drive directly from a microcontroller’s data pin. The SRX882 receiver complements it with strong sensitivity, low sleep current, and a simple data-out pin that also connects straight to a microcontroller, making the pair ideal for quick wireless prototyping without extra driver circuitry.

Together, this kit is well suited for wireless doorbells, remote control switches, security and alarm systems, garage door and gate automation, sensor telemetry, and any short-range wireless data link where a simple, low-cost ASK/OOK solution is preferred over more complex transceivers. Both modules expose straightforward VCC, GND, DATA, and antenna pins, so they drop easily into Arduino, ESP32, or other microcontroller-based projects with minimal wiring. With proven RF performance, wide supply voltage tolerance, and a long track record in hobbyist and industrial control designs alike, this kit gives makers a reliable foundation for building custom wireless remotes and monitoring systems.

Specification:

• Transmitter Model : STX882
• Receiver Model : SRX882
• Frequency : 433MHz
• Modulation : ASK/OOK
• TX Supply Voltage : 1.2V – 6V
• RX Supply Voltage : 2.4V – 5.5V
• TX Current : 34mA @3.3V
• RX Current : 2.8mA @433MHz
• Air Data Rate : 0.1 – 9.6 Kbps
• Receiver Sensitivity : -110dBm @1.2Kbps