Features 1、EXCELLENT MATERIAL: These antennas are made of environmentally friendly and harmless materials, waterproof and sunscreen, sturdy and durable. 2、WIDE RANGE: The working frequency is 2400‑2500/423‑443MHZ, the antenna gain is high, the larger the range, the farther the distance. 3、SMA MALE INTERFACE: The signal antenna has SMA male interface, which is easy to connect and has good stability and less interference. 4、HIGH PERFORMANCE: Independent channel transmission is faster, reduces co channel interference, enhances gain effect, and improves performance. 5、APPLICABLE SCENES: Widely used in wireless data transmission modules, drones, security alarms, power monitoring, smart household, etc. Specification Item Type: Signal Antenna Model: JB-433-002 Material: ABS Purpose: Signal transmission and gain Working Frequency: 2400-2500/423-443mhz Antenna Gain: 3dbi 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 system, LORA wireless data transmission module, drone, security alarm, power monitoring, smart home, etc. Package List 5 x Antennas