Features:

• The Eldes ESIM110 can be programmed PC using the included configuration tool via USB connection.
• The ESIM110 can also be programmed via SMS messaging or a web browser
• Allows access for up to 500 users, and can be managed by up to 5 administrators
• Fault notifications are sent via SMS.
• Din-Rail plastic enclosure.
• Complete event logs are accessible via the web.
• Quad-Band GSM/GPRS communicator. 
• ​GSM module frequency: 850/900/1800/1900 MHz.
• Supply voltage: 10-24V AC/DC.
• Inputs: 3
• Relay Output: 1
• Output type: NO (relay)