$ 0 0 4dBi High Gain Antenna for 433MHz Wireless RF Transceiver Module is suitable for 433MHZ device. Specification 4db gain antenna, Working Frequency: 433MHZ Resistance:50Ω Antenna Gain:4dBi Length:120mm Standing-wave Ratio:≦1.8 Polarization: level Connector Type: SMA Internal Thread Internal Needle Appearance:bendable for 90 degrees Maximum Input Power: 50W Antenna Color: Black Input Connector: SMA or other Price: $2.99 Special Price: $2.54