Features:
- Add or remove users by SMS Text com mand.- The relay close or open time is programmable.
- Can be operated from anywhere, no distance limit.
- Quad-band, can work in the worldwide GSM Networks.
- No need to provide a remote control or keys for different users.
- Secure - Using caller-ID for identification, unknown callers are ignored.
- Up to 200 authorized phone numbers can be configured at the specified time.
- One output with relay rating 3A/240VAC for connecting the switch of the door or machines.
-Multiple applications. (gates, bollards, barriers, garage doors, shutters and access doors or machines).
- The relay action will return a SMS confirmation to the owner or authorized call in number, this function is editable by user. - No call charges. the GSM GPRS Relay Switch rejects the call from authorized number then carries out the turn ON/OFF action on the first 'ring'.