Specification Note : sma inner hole Gain: 5.8dBi Frequency Range: 868MHZ VSWR: ,and then turn on the power again. 3.Applications Include: Low Data Rate Communication Networks, Long Distance LoRa Nodes, IoT & M2M Nodes, Industrial & Environmental Monitoring, Smart Metering Applications,LoRaWAN, Multipoint and NLOS Applications, RAK V1 V2 Nebra Bobcat EasyLinkIn SenseCAP M1 & SyncroB. it Helium Hotspot HNT Miner Mining etc.(915MHZ versions only 4.The main body of the antenna is made of pure copper material, which has more excellent gain performance Tips: Please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 1 x Antenna 1X RP-SMA Female to SMA Male Adapter (As the Picture Shown)