Feature:1. SMA Male Inner Needle: The working frequency of the WIFI antenna is 315MHz, the antenna gain is 3DBI, with SMA male inner needle, the connector can be rotated 3602. Waterproof Material: The WIFI antenna uses ABS, red copper environmental protection material, which is waterproof and can be used outdoors3. Pure Copper Interface: The WIFI antenna has a pure copper plated real gold interface, which is anti oxidative and corrosion resistant, and the transmission is more stable4. 315MHZ Frequency Band: High gain 315MHZ frequency band antenna ensures good through wall signal, smoother data transmission and reception, and wider coverage5. Scope of Application: Suitable for wireless meter reading system, LORA wireless data transmission module, drone, security alarm, power monitoring, smart home, etcSpecification:Item Type: WIFI AntennaMaterial: ABS, Red CopperApplication: Suitable for Wireless Meter Reading System, LORA Wireless Data Transmission Module, Drone, Security Alarm, Power Monitoring, Smart Home, Etc.Operating Frequency: 315MHZAntenna Gain: 3DBIStanding Waving Ratio: 1.5Impedance: 50Polarization Method: Vertical PolarizationMaximum Power: 50WAntenna Interface: SMA Inner Pin.Package List:2 x WIFI Antenna