End-of-life product: 2021-10-06

GSM dialler with 2 relay outputs – ESIM252

GSM dialler with 2 relay outputs

5 users
Audio notifications
Reports to alarm center and owner
5 inputs, 2 relay outputs



What is ESIM252?

ESIM252 is an advanced GSM gateway and remote relay. This device can be connected to any panel with PGM outputs and electrical appliances, where inputs need to be triggered.

ESIM252 lets create distinct scenarios for each input, output, or command you send. Direct call and SMS from/to mobile phone, and transmits standard protocols to alarm receiving center.

How ESIM252 works?

ESIM252 monitors up to 5 inputs, notifies up to 5 users (including alarm receiving center), according to pre-configured settings/scenario.

It also lets users and alarm receiving centers remotely control its relay outputs: switch electrical appliances, reboot systems, activate controllers.

ESIM252 can expand smoke detection, flood and similar systems as GSM communicator, dialer.

Where to use ESIM252?

Communicator for control panels

Remote electrical appliances management

Fire and flood prevention

Rebooting computer systems

Main features

  • 5 users
  • 5 inputs
  • 2 relay outputs
  • Input matrix routing
  • Audio messages
  • Pulse counter
  • Configuration: USB, SMS, GPRS (Eldes configuration tool)
  • Control: SMS, Voice Call

Frequently asked questions (FAQ)

What are the prices of ELDES production?

To get the prices of the devices please check ELDES disributors’ Internet sites. Otherwise, feel free to contact out partners in your country/city by telephone or e-mail.

Can I purchase ELDES devices directly from you?

You can purchase ELDES production only from our distributors. If you have any ideas or intentions to create a new nonstandart device or suggestions how to improve our current devices contact us directly or our partners in your country.

Where can I purchase ELDES devices if your distributors are not available in my country?

Feel free to contact us.


GMS modem frequency850/900/1800/1900 MHz
Power supply voltage10-24V AC/DC
Relay output2
Output typeNO (relay)
C1 output maximum commutating values1A/24V DC; 0,5A/125V AC
Event buffer1000
Authorized users5
Ways of configurationSMS, USB, Internet
Operating temperature-20…+55°C (-30…+55°C with limitations)

Where to buy?