> gps device

Primary need

1. Device should send location to our server.
2. Each device should be uniquely mapped.

Use case
1. User will carry the device with him and his live location will be tracked on the app.
2. User will be able to start and stop the location which will be corresponding to his start and end duty

Optional

1. In case of emergency user can click SOS button which will alert
2. If we are able to give him call functionality
It will be used at locations like forest exact location will not be known to us for security reasons

The device should be
--waterproof
--heat resistance
--withstand rough environmental condition