Features:Frequency range (MHz): 433MHz+ / -6MHzGain (dBi): 2.2Input impedance (OHM): 50Max-power (dBm): 30Diameter: 5mmLength (mm): 34+/-1 (Including welding part length)Height (mm): 20+/-1 (Exposed parts, does not contain the welding part length)Connector type: Direct weldmentPackage included:50 x 433MHz helical antenna