GSM 4G LTE Remote On/Off Switch Door Gate Opener Remote Control Relay Output
GSM Quad-band, can work in the worldwide GSM networks, Optional 4G. The GSM Gate Opener rejects the call from authorized number, then the relay will turn ON/OFF on the first ring. 4G-EU: GSM: B2/B3/B5/B8 LTE-FDD : 1/B3/B5/B7/B8/B20/B28.