This has been described by some as a Solar Powered Intercom; However it is more than that. It works off the 3G GSM networks (and 4G with Optus only) and has no range limit as a consequence. You will need mobile phone reception at your gateway. So long as you have that, when a visitor presses the intercom’s # button twice, this unit’s in-built ‘mobile’ phone dials the home owner’s phone. When the home owner answers, they can speak to their visitor and if they want to let them in, they need only press the # button on their phone to open the gate. This kit comes with the GSM intercom, the solar panel and 10 Amp batteries in a waterproof enclosure.
The GSM18V9S (click here to view the product brochure) has a keypad to allow visitors to open the gate via PIN or they can press the # button twice to activate the intercom to talk to the property owner. Within the GSM18V9S’ shell is circuitry that can store 3 contact phone numbers (so that if the first resident misses the call from the gate, a back-up number rings so that another person can talk to the visitor at the intercom). If the keypad functionality is not desired, we recommend you click here to view the GSM18V81S (simple single button intercom).