This antenna is designed for GSM GPRS 900/1800 mhz system of communication terminal system. This is a Spiral Type GSM Antenna with standard SMA Male Connecter and 3 meter wire length. It provides high gain of 2 dBi and suitable for tough terrain and open air environment applications. Input impedance of this antenna is 50 ohm. It comes with magnetic base. The antenna is structure compact and convenient for easy installation. Commonly used in GSM repeater, GSM sensor, GSM module& GSM modems.