Feature:1. HIGH PERFORMANCE: High gain omnidirectional antenna, working frequency is 423‑443Mhz, with super strong signal, waterproof and sunscreen.2. PORTABLE DESIGN: The antenna is small in size and light in weight, foldable design, easy to install and carry, free from space constraints.3. SMA MALE: The antenna has SMA male interface, stable in connection, wear and corrosion resistance, has long service life.4. HIGH EFFICIENCY: Independent channel transmission is faster, reducing co channel interference and enhancing signal gain effect.5. WIDE APPLICATION: Widely used in 433M wireless meter reading system, drone, security alarm, power monitoring, smart home, etc.Specification:Item Type: Foldable AntennaModel: JB-433-009Material: ABSPurpose: Signal transmission and gainWorking Frequency: 423-443MhzAntenna Gain: 6dbiStanding Wave Ratio: ≤1.5Impedance: 50ΩPolarization Method: Vertical PolarizationMaximum Power: 50WAntenna Interface: SMA MaleWorking Temperature: -40℃~+85℃Storage Temperature: -20~40℃Applicable Equipment: Suitable for 433M wireless meter reading system, wireless data transmission module, drone, security alarm, power monitoring, smart home, etc..Package List:5 x Antennas