GSM gate opener for remote control with RTU5024 relay switchAdd or remove users by SMS Text com mand.<br> The relay close or open time is programmable.<br> Can be operated from anywhere, no distance limit.<br> Quad-band, can work in the worldwide GSM Networks.<br> No need to provide a remote control or keys for different users.<br> Secure - Using caller-ID for identification, unknown callers are ignored.<br> Up to 200 authorized phone numbers can be configured at the specified time.<br> One output with relay rating 3A/240VAC for connecting the switch of the door or machines.<br> Multiple applications. (gates, bollards, barriers, garage doors, shutters and access doors or machines).<br> The relay action will return a SMS confirmation to the owner or authorized call in number, this function is editable by user.<br> 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'.<br> GSM Frequency: Quad-Band 850/900/1800/1900MHz<br> Gigital Output: NC/NO dry contact, 3A/240VAC<br> DC Power Supply: 9-24VDC/2A<br> Power Consumption: 12V Input Max.50mA/Average 25mA<br> SIM Card: Support 3V SIM Card<br> Antenna: 50 ohm SMA Antenna Interface<br> Material: ABS<br> Color as shown<br> Package Contents:<br> 1 x GSM Door Opener<br> 1 x antenna<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.