The GSM Relay GSM
Switch GSM Gate Opener RTU***4 is a upgrade version of gsm gate
opener, it supports **0 authorized users, the authorized users can
call in to open the gate or switch ON OFF the equipments with a
free charge call at the specified time.
1. GSM
Frequency: **0/**0/***0/***0Mhz , can work in the worldwide GSM
Networks; 2. No
call charges. the GSM Relay 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. Add
or remove users by SMS Text commands; 5. No
need to provide a remote control or keys for different
users; 6. Up
to **0 authorized phone numbers can be configured at the specified
time; 7. 1
output with relay rating 3A/**0VAC for connecting the switch of the
door or machines.
