Programmer Version RTU5024 GSM Gate Opener Relay Switch Remote Access Control By Free Call App Support

Features:
850/900/1800/1900MHz quad bands, can work in the worldwide GSM networks.
No call charges, the GSM Relay Switch rejects the calling from authorized number then carries out the turn ON/OFF action on the first 'ring'.
Multiple applications. (Gates, bollards, barriers, garage doors, shutters and access doors or machines).
Secure, using caller-I-D 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.
Up to 1000 authorized phone numbers can be configured at the specified time.
One output with relay rating 3A/240V AC for connecting the switch of the door or machines.
The relay action will return a SMS confirmation to the owner or authorized call in number, this function is editable by user.
The relay close or open time is programmable.
Rechargeable battery for power failure alert.
One alarm input port on board.