Features 1、Strong Durable Signal: High quality materials to create non toxic harmless, strong durable signal, waterproof, sunscreen 2、Small Size: Easy to carry, easy to install, completely free of space constraints. Can support multi band, arbitrary choice 3、High Gain: High signal durable antennas have high gain and the greater the range, the greater the distance. It is widely used in 433M wireless meter reading system, LORA wireless data transmission module, UAV, security alarm, power monitoring, smart home and so on 4、Wear and Corrosion Resistance: The interface is pure copper SMA internal thread and needle, wear resistant and corrosion resistant and durable 5、Independent Channel Transmission Faster: Reduce the same frequency interference, strengthen the signal gain effect, improve transmission performance Specification Item Type: Antenna Model: For JB-433-014 Material: ABS Purpose: Signal Transmission and Gain Antenna Gain: 3Gbi Operating Frequency: 423-443mhz Supported Frequency Band: 4G/GSM/GPRS/433MHZ Standing Waves Ratio: ≤1.5 Impedance: 50Ω Maximum Power: 50W Polarization Mode: Vertical Polarization Antenna Interface: SMA Inner Screw Inner Needle Application: Suitable for 433M Wireless Meter Reading System, Lora Wireless Data Transmission Module, Uav, Security Alarm, Power Monitoring, Smart Home, Etc Package List 5 x Antenna