Information for suppliers
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Help and advice
Some of these products/services work with your existing mobile phone (GSM), and would allow individuals you have authorised to find your location to within approximately 50 metres. Other products work via GPS (a satellite based global positioning system) and will allow individuals you have authorised to find your location (if you are carrying the GPS product) to approximately 10 metres. Thus GPS sensor based products can be more accurate. However, the mobile phone based systems are often more reliable if you are indoors.
Several of these units offer the option of Geo-Fences. This is the possibility of entering a predefined area into the unit. If the user leaves this area with the unit then an alarm/alert is raised. Depending on the model this may involve a monitoring centre being notified or designated contacts such as a friend or relative being informed by a text message.
There may be concerns about the ethical implications of installing this type of equipment, and how it may affect the privacy of the individual. For more information click on this link for our advice on ethics and telecare.