User's Manual

6
3.4 Power on/Power off
Figure 2-2
Power on:
 Press the SOS key at least 3 seconds and release it to power on rescue device.
Power off:
 Rescue device is auto power off and user can’t turn off the machine by itself.
4 Frequency
LTE:Band2、Band4、Band12
WIFI:2.4GHz
4.1 WIFI
The device role of WIFI could be Master and Slave.
When the device role is Master, the device will provide below services: the others devices
can read or use the above services after connecting devices, connect the designated
device to read the data or related information of the designated WIFI devices. After
reading the data, the server can
be reported to the server by the corresponding message.