Description: The wireless receiving controller has the characteristics of high confidentiality, large storage capacity, stable performance and low power consumption. The working voltage range is wide, 12-48 volts can be used, and can be adapted to various domestic and foreign customers. Durable, life is generally several times longer than the resistance to voltage reduction. Widely used in many kinds of equipment control. Size:62x46x20mm/ 2.44x1.81x0.79 inch Specification: Technical parameter 1. Working Voltage: 12-48V 2. Static Current: 10mA 3. Working Current: 20mA-30mA 4. Working Temperature: -20-80 degrees Celsius 5. Receiving Sensitivity: -103dBm 6. Working Frequency: 433 Frequency 7. Size: 62mm*46mm*20mm Usage and wiring diagram 1. Two learning keys (LEARN1 and LEARN2) on the controller correspond to two relays respectively. 2. Learning Style Click: Press the learning key 1 to release, press any key of the remote control immediately, flash the indicator five times, indicating that the first relay is successful in learning; press the learning key 2 to release, repeat the above steps, and learn the second relay; Self-locking: Press three times learning key 1 to release, press any key of remote control immediately, flash five times of indicator lamp to indicate that relay No. 1 is successful in learning, press learning key 2 to release, repeat the above steps and learn relay No. 2; 3. Clear code: Press the learning button for a long time until the light is out. Package Includes: 1 Piece Controller 1 Piece Remote Control Note: Paper instructions and wiring diagrams are not included in the shipment. Please be sure to check this link to see how to use it to avoid unnecessary trouble.