Features: 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 360 2.Waterproof Material: The WIFI antenna uses ABS, red copper environmental protection material, which is waterproof and can be used outdoors 3.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 stable 4.315MHZ Frequency Band: High gain 315MHZ frequency band antenna ensures good through wall signal, smoother data transmission and reception, and wider coverage 5.Scope of Application: Suitable for wireless meter reading system, LORA wireless data transmission module, drone, security alarm, power monitoring, smart home, etc Specification: Item Type: WIFI Antenna_x000D_ Material: ABS, Red Copper_x000D_ Application: Suitable for Wireless Meter Reading System, LORA Wireless Data Transmission Module, Drone, Security Alarm, Power Monitoring, Smart Home, Etc._x000D_ Operating Frequency: 315MHZ_x000D_ Antenna Gain: 3DBI_x000D_ Standing Waving Ratio: 1.5_x000D_ Impedance: 50_x000D_ Polarization Method: Vertical Polarization_x000D_ Maximum Power: 50W_x000D_ Antenna Interface: SMA Inner Pin PackageList: 2 x WIFI Antenna