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 Item Type: WIFI Antenna Material: ABS, Red Copper Application: Suitable for Wireless Meter Reading System, LORA Wireless Data Transmission Module, Drone, Security Alarm, Power Monitoring, Smart Home, Etc. Operating Frequency: 315MHZ Antenna Gain: 3DBI Standing Waving Ratio: ≤1.5 Impedance: 50Ω Polarization Method: Vertical Polarization Maximum Power: 50W Antenna Interface: SMA Inner Pin 2 x WIFI Antenna