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SIM800C 2-Channel GSM Relay Switch & Remote Controller

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The SIM800C 2-Channel GSM Relay Module bridges the gap between your electrical devices and mobile networks, allowing you to trigger switches using a standard SIM card. By simply sending an SMS command or making a phone call to the module, you can remotely toggle two completely independent relays, no matter how far away you are.

Because it relies on the ubiquitous GSM cellular network rather than Wi-Fi or Bluetooth, this module is the ultimate solution for remote areas or off-site installations lacking internet access. Each onboard relay features Normally Open (NO) and Normally Closed (NC) contacts, providing the flexibility to control heavy loads, motors, or lighting systems.

Perfect For:

  • Remote Access Control: Wire it to electronic gates, garage doors, or barriers to grant access via a quick phone call.

  • Agriculture & Irrigation: Turn on distant water pumps, greenhouse heaters, or lighting systems without having to travel to the site.

  • Off-Site Equipment Management: Remotely reboot locked-up servers, industrial machinery, or networking hardware with a simple text command.

Technical Specifications:

  • Communication Module: SIM800C (Quad-band 850/900/1800/1900MHz)

  • Network Compatibility: 2G GSM/GPRS

  • Relay Channels: 2 Independent Relays (10A 250VAC / 10A 30VDC capacity per channel)

  • Control Methods: SMS commands and Phone call triggering

  • Interfaces: Onboard SIM card slot and external antenna connector

  • Output Contacts: COM, NO (Normally Open), NC (Normally Closed) for both channels

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.