Mjfvn 2G /3G/4G Rtu5024 Gsm Gate Opener Relay Switch Wireless Sms Call Remote Control Gate Door Opener Free Call For Access Control(2G)
MJFVN
*850/900/1800/1900MHz quad bands, can work in the worldwide GSM networks. *No call charges. The GSM Relay Switch answers the call from authorized number then carries out the turn ON/OFF action on the first 'ring'. *Secure - Using caller-ID for identification, unknown callers are ignored. *Add or remove users by SMS Text command. *No need to provide a remote control or keys for different users. Welcome and I wish you a happy life, my friend., Manufacturer: MJFVN
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