Features 1、Omnidirectional High Gain: The Radio antenna is connected to the SMA interface, and the omnidirectional high gain antenna reduces co channel interference, strengthens the signal gain effect, and improves transmission performance. 2、Fast Data Reception: Accuracy steel coil spring, fast data reception, high gain and large range, the interface is copper inner thread and inner needle is wear resistant and corrosion resistant. 3、Double Steel Coil Spring: The double steel coil spring signal of the spring antenna is super strong, and the antenna base and antenna rod can be disassembled for easy cleaning. 4、Attached Magnet Base: The radio antenna base is attached with a magnet, and the magnetic chuck is convenient for fixing and can be adsorbed on metal objects. 5、Wide Application: 5DBI antenna is widely used, 433M wireless meter reading system, LORA wireless data transmission module, drone, security alarm, power monitoring, smart home and other equipment can be applied. Specification Item Type: Radio Antenna Material: Copper, Steel Model: XP-433-003 Purpose: Signal Transmission and Gain Working Frequency: 423-443mhz Antenna Gain: 5dbi Standing Wave Ratio: ≤1.5 Impedance: 50Ω Polarization Method: Vertical Polarization Maximum Power: 50W Antenna Interface: SMA Female Thread Inner Needle Line Length: 3meters / 3.3yd Line Type: RG174 Line Working Temperature: -40℃~+85℃ Applicable Equipment: 433M Wireless Meter Reading System, LORA Wireless Data Transmission Module, Drone, Security Alarm, Power Monitoring, Smart Home Package List 1 x Radio Antenna