base station and the adjacent base stations. Take the first four digits and keep them in the module. If the
base station has many data with different first digits, they all must be saved. And initiate the protection
status. In the state of protection, the module will read the data of all base stations (1-7) once every 5
minutes, and take the first 4 digits to compare with the protection data. If all the first 4 digits of the data of
all base station are consistent with the existing data, then dial or send alarming messages to the user
according to the alarming setup.
For example: #740#0000##. After the fence is set, the terminal will alarm in the case where it is moved
about 3-5km out of the fence.
(3) Fence Reading Function
Send commands to the terminal: # command number (752) # user password 4 digits ##; after the
command is set successfully, the terminal will read the data of the module fence working status and return
message to the sending mobile phone, or PASSWORD ER if the password is wrong.
For example: #752#0000##
Return: #open:1#lat:11456.209400#lng:2233.470100#distance:500#time:5#status:2
Where, open: 1 indicates fence open; Open: 0 indicates fence closed;
lat:11456.209400, latitude;
lng: 2233.470100; longitude;
distance: 500; fence radius;
time: 5 sampling interval;
status: 2 , terminal has obtained valid satellite data, fence works normally;
status: 1; fence open, but there are no valid satellite data have been received;
status: 0, no electronic fence is set.
(4) Function of Canceling Fence
Command name: # command number (760) # user password 4-digits ##
Example: #760#0000##
After the terminal receiving this command, all fence settings will be cancelled.
Advice；Do not set GSM fence and GPS fence at the same time.
11. Auxiliary Functions:
(1)#901## Command of reading user parameters;
(2)#902## Command of reading GPRS parameters
(3)#903## Restart command
(4)#904## GPRS connection command
(5)#905## GPRS disconnection command
Notices
1. This device is of non-waterproof design.
2. This device must work with the cooperation of GSM/GPRS network.
3. Make sure that the SIM card has sufficient balance in order to avoid inconvenience in
use.
4. This device will not be able to work in case of power-off and out of the service area, even
if you are a registered user.
5. This device supports the dual positioning mode of GPS and GSM/GPRS.
6. Please use this device in a legal area, any illegal consequence will be borne by the user.
