Quad-band GSM emergency call service (850/900/1800/1900 MHz) which allows you to send calls and / or text messages with help request to a list of telephone numbers (max. 8) before pressing the button on a 433 MHz remote control stored.

The transmitter, to be worn around the neck with a necklace or string (string) of those for company passes or badges, allows the transmission of the alarm request even in large apartments, villas and even from the garden or from one floor to another.

Born as a life-saver for the elderly, the sick, people who are not self-sufficient, it can be customized to adapt it to other similar uses. Tele-assistance is much more convenient, intuitive, simple and quick to use than a landline or mobile phone because the latter assume that to call, for example, neighbors and relatives, medical assistance or law enforcement, you must dial a series of keys and read the display (in smartphones it is even necessary to navigate between icons and menus, which is not so immediate), while in our case a button is sufficient to send the alarm signal.

The package includes: the main board with SIM800 GSM module and the GSM antenna. The 433 MHz transmitter, the battery and the box are not included.

The complete 3D printed case is also available for € 5. It is sufficient to select the material and the color to place it in the cart.

N.B. The main board works at 5V, therefore it is possible to supply it via a voltage output with USB output available among the related products.

• GSM/GPRS module: SIM800C quadriband (850/900/1800/1900 MHz)
  GPRS multi-slot class 10/8
  GPRS mobile station class B
  Compliant to GSM phase 2/2+
  – Class 4 (2 W @ 850/ 900 MHz)
  – Class 1 (1 W @ 1800/1900 MHz)
• Frequency: 433,92 MHz
• Alarm sms
• Alarm call
• Matching telephone numbers: 8
• Programmer microcontroller: PIC18F46K20-I/PT
• Supply voltage: 5 V
• Current consumption: max 1 A

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