GSM Gate Opener Relay Switch Remote Access Controller Automatic sliding door motor control by free phoen call RTU5034 ,Easy to Operate
1. Default GSM Quad-band, can work in the worldwide GSM Networks, Optional 3G or 4G; 2. No call charges. the GSM Gate Opener/Relay Switch rejects the call from authorized number then carries out the turn ON/OFF action on the first 'ring'; 3. Multiple applications. (gates, bollards, barriers, garage doors, shutters and access doors or machines); 4. Secure - Using caller ID for identification, unknown callers are ignored; 5. Can be operated from anywhere, no distance limit;
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