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GSM-KEY Garage/Gate Opener - 2 x Relay, 2 x Inputs - DC Powered

Quick Overview

2 x 10 amp relays. Requires DC power to operate.

Availability: In stock

Regular Price: $169.99

Special Price: $126.99

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The GSM-KEY is a wireless gsm remote control switch that connects to the 2G GSM cell phone network.

This device does not come with a SIM card. Please contact your local cell provider and purchase a standard 2G/3G SIM card, and activate it on a pay as you go plan.

This device can be wired to an electronic gate opener or garage door opener. By calling the phone number assigned to the SIM chip (SIM chip not included), the device will activate a relay, which can be connected to the trigger on the gate, or the gate motor itself. The most common use for this device is for gated communities or large garages that allow only authorized phone numbers to call the device to activate the gate or garage door.

The device has two independent relay switches. The first relay switch is activated by calling the SIM cards cell phone number. The device will then reject the call without answering and trigger the first relay. There are no call costs incurred when dialing the unit; it will recognize an authorized telephone number calling it and reject the call without answering. The first relay has two modes, momentary and latching mode. When receiving a phone call in momentary mode, the first relay will turn on for a pre-programmed amount of time. This time period can be programmed by the user and can be anywhere from half a second to many days. When receiving a phone call in latching mode, the device will simply change state. If they relay was on before, it will be turned off. If it was off before, it will be turned on.

Both relays can be controlled by SMS either independently, or at the same time.

Up to 2000 phone numbers can be programmed into the white list of this device.


  • Program up to 2000 regular phone numbers, 800 special phone numbers, and 5 alarm numbers (these numbers will receive a text message every time the device is activated).
  • Logs up to 500 of the last numbers that have called it.
  • 2 Input Relays
  • Working voltage is 9-12V DC @ 1 amp (1 amp is recommended, but 500 mA is suitable)
  • Real-time & interactive control
  • Quad Band (Supports 850 MHz, 900 MHz, 1800 MHz, 1900 MHz).
  • 2 x Relays that can handle up to 240V @ 10 amps
  • Operating temperature: -25 °C to +60 °C, -12 °F to 140 °F
  • Relays do NOT supply power; they only relay power.
  • Small standby power consumption (< 20mA @ 12V)
  • Relay's remember last state in the event of power loss.
  • Optional password protection to prevent unauthorized access to the device.
  • Two operating modes (momentary and latching relays) for the first relay
  • One relay is relay is activated by telephone call, the rest are activated by SMS
  • Fine grained timer control (programmed by milliseconds)

Additional Information

Input Power Type DC
Input Power Voltage 9-12
Number of Input Relays 2
Number of Output Relays 2

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  1. Once setup, works good Review by Charlie Thomson

    I live in Australia and have a few of these devices for private residence complexes. Useful to review the logs on the device to see when access was given to which tenant. Good product, arrived in 4 days from when I ordered. (Posted on 8/19/12)

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