Welcome to our store! 1. EXCELLENT MATERIAL: These antennas are made of environmentally friendly and harmless materials, are waterproof and sun-resistant, sturdy and durable. 2. WIDE RANGE: The working frequency is 2400-2500/423-443MHz. The antenna gain is high, meaning the wider the range, the greater the distance. 3. SMA MALE INTERFACE: The signal antenna has an SMA male interface, which is easy to connect and offers good stability and less interference. 4. HIGH PERFORMANCE: Independent channel transmission is faster, reduces co-channel interference, improves amplification, and enhances performance. 5. APPLICABLE SCENES: Widely used in wireless data transmission modules, drones, security alarms, energy monitoring, smart homes, etc. Item Type: Signal Antenna Model: JB-433-002 Material: ABS Purpose: Signal transmission and amplification Working Frequency: 2400-2500/423-443 MHz Antenna Gain: 3 dBi Impedance: 50Ω Maximum Power: 50W Standing Wave Ratio: ≤1.5 Polarization Method: Vertical Polarization Antenna Interface: SMA Male Elbow Application Field: Suitable for 433M wireless meter reading systems, LoRa wireless data transmission modules, drones, security alarms, energy monitoring, smart homes, etc. 5 x Antennas Customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.