Feature:1. SPECIFICATIONS: Including 5pcs signal antenna, with 2400‑2500mhz and 423‑443mhz dual frequency range, easy to use and replace.2. DURABLE MATERIAL: These antennas are made of excellent materials, non and , waterproof and sunscreen, and have a long service life.3. HIGH GAIN: Adopt vertical polarization method and have 3DBI high signal gain, the larger the range, the longer the transmission distance.4. GOOD PERFORMANCE: The antenna adopts SMA male interface, independent channel transmission is faster, and reduce co channel interference.5. MULTIPLE USAGES: Widely used in wireless meter reading systems, drones, security alarms, power monitoring and smart household, etc.How to Use:Can be used after connecting with the device.Specification:Item Type: Signal AntennaModel: JB-GSM-029Material: ABSPurpose: Signal transmission and gainWorking Frequency: 2400-2500mhz, 423-443mhzAntenna Gain: 3DBiImpedance: 50ΩMaximum Power: 50WStanding Wave Ratio: ≤1.5Polarization Method: Vertical polarizationAntenna Interface: SMA MaleApplication Field: Suitable for wireless meter reading system, LORA wireless data transmission module, drone, security alarm, power monitoring, smart home, etc. Package List:5 x Antennas