1. The carrier board integrates the KQ-330F module and peripheral circuits, requiring no additional coupling components and can be directly connected to 220V AC power. External dimensions are 53x38x17 mm (LxWxH), with a single row of pins. Pins 1 and 2 connect to 220V AC power without polarity (pin spacing 2x0.1 inches), distance between pin 2 and 3 is 1.1 inches, and the remaining pins are spaced 0.1 inches apart. 2. Operating frequency range is 120–135 kHz, interface baud rate is 9600 bps; actual baud rate is 100 bps. 3. Maximum continuous transmission frame length is 252 bytes; frame length is user-defined from 1 to 252 bytes, and the module does not transmit redundant data. 4. Receiving sensitivity: 1 mV. 5. Out-of-band rejection: 60 dB. Bandwidth: 10 kHz. Insulation resistance: 500V, 500MΩ. Power supply: DC +5V; operating current is 11mA during reception and 230mA during transmission. Power frequency insulation withstand voltage: 3000V for 1 minute test between AC and GND, with no breakdown or leakage current. Surge protection: Onboard protection circuitry; PCB layout and component selection designed for wide temperature range, high voltage resistance, and high surge resistance. Operating temperature: -25°C to +70°C; humidity: up to 90%. The KQ-130F power carrier module requires no external components and operates with a 5V power supply. Transmission power is supplied via pin. For bidirectional communication, two 5V pins can be connected in parallel. All modules support point-to-point and point-to-multipoint networking, with multi-point data control via polling. Color: As shown Material: PCB Package Contents: 2 x KQ-330F Module Package includes only the items listed above; other products are not included. Note: Lighting reflections and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1–3 cm.