Features 1、High Quality Material: Non toxic and harmless, durable, strong signal, waterproof and sun proof. 2、Portable: Small in size, easy to carry and easy to install, completely free from space constraints. High signal durable antennas have high gain, and the greater the range, the greater the distance. 3、Interface: The interface is an SMA inner thread inner needle, which is wear resistant, corrosion resistant and durable. 4、Independent Channel: Faster transmission, reduce co channel interference, strengthen signal gain effect, and improve transmission performance. 5、Wide Range of Applications: 433M wireless meter reading system, wireless data transmission module, drone, security alarm, power monitoring, smart home, etc. can be applied. Specification Item Type: Antenna Material: ABS Model: JB-433-007 Purpose: Signal Transmission And Gain Working Frequency: 423-443mhz Antenna Gain: 6dbi Standing Wave Ratio: ≤1.5 Impedance: 50Ω Polarization Method: Vertical Polarization Maximum Power: 50W Antenna Interface: SMA Male Inner Pin Working Temperature: -40~85℃ Storage Temperature: -20~40℃ Applicable Equipment: 433M Wireless Meter Reading System, Wireless Data Transmission Module, Drone, Security Alarm, Power Monitoring, Smart Home, Etc. Package List 2 x Antenna