MICODUS MV77G User manual

4G MV77G User Manual V1.0
Learn how to set up your new MiCODUS Tracker
Copyright ©2023 MiCODUS | All Rights Reserved
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2.Specifications
4G LTE+
2G GSM
1. Main Features
Historical Route
Playback
Remote Listen-in RealtimeTracking Vibration Alarm
Movement
Alert
Geo-fence
Panic Button Fast Charging
Design
Ignition
Detection
Overspeed
Alarm
Low Voltage
Alarm
Pull Out Alarm
GNSS+LBS
Model
Weight
Dimensions
MV77G
41g
85mm(L)*49.2mm(W)*26mm(H)
Device Information
Working Voltage
Working Current
Sleep Current
Working Temperature
Working Humidity
Working Frequency
SIM Card
GNSS
GPS Frequency
BDS Frequency
Satellite Channels
Hot/Cold Start
GNSS Antenna
Positioning Type
Accuracy
Charging Port USB-A
Charging Port USB-C
SOS
2G GSM/GPRS: 850/900/1800/1900MHz
4G LTE CAT1:LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12
/B13/B18/B19/B20/B25/B26/B28/B66;
LTE-TDD: B34/B38/B39/B40/B41
Nano SIM
Celluar Antenna Built-in, FPC
GPS+GLONASS
L1: 1575.42±1.023MHz
B1:1561.098±2.046MHz
32
<1s，<32s @ Open Sky
Built-in Ceramics GNSS Antenna, 25mm*25mm*2mm
GPS+GLONASS+LBS+AGPS
Location accuracy: <10m（1σ）
Timing accuracy: <30ns（1σ）
Speed accuracy: <0.1m/s（1σ）
DC: 5V 2A/9V 2A
DC: 5V 2A/9V 2A
Support
9-32V DC
12V/65mA
12V/Average 10mA
-20℃ - 75℃
10%-85%RH
Working Parameters
Celluar Specifications
GNSS Specifications
External Interfaces
Battery Built-in 3.7V 50mAh Polymer Battery

4.How to manage the tracker to get online?
3.Product Stucture
Step 1 SIM card requirements
Charging
Port USB-A
Charging
Port USB-C
SOS Button
Power
Celluar
GNSS SIM
Card slot
Normal SIM
1MB Free
Prepaid Data
www.spionlink.com
Add Credit
Data Only
No SMS & Call
Roaming
Unavailable
TopUp
1MB Free
Prepaid Data
www.spionlink.com
Add Credit
Data Only
No SMS & Call
Roaming
Unavailable
TopUp
7
Cover

Step 2
Please get a suitable SIM card from your local place. The
SIM card must meet below points:
It must be compatible with the 4G LTE or 2G GSM network
Please enable SMS, call, internet data traffic of the SIM card
Remove the PIN code
Enable the caller ID display feature
Use Nano size SIM card for the tracker
Please inquire the SIM card provider for the exact correct APN
information
SIM card installation
1 32
NOTE
: Please just stick the cover after you managed to get the
device online!

Step 3 Configure APN
Step 4
Indicator status description
MV77G
APN,ApnName,User,
Password# SET APN OK APN,orange, orange,orange#
APN,internet#SET APN OKAPN,ApnName#
SMS Command
Format Reply Example Note
If the SIM card has APN user and APN
password, then use this command.
If the SIM card operator doesn't have APN
user and APN password, then please use this
command.
Note: The APN information is very important, it must 100% correct to match with the sim card of
the tracker, if you configured wrong APN, the tracker also will reply "SET APN ok" but it will
can't get online!
Please get the exact correct APN name from local SIM card provider.Take the tracker
to a good signal place for operation and configure the APN for it as below:
LED Event State
Charging
Searching for network
POWER LED (RED)
CELL LED
(YELLOW)
Network has been registered
Device entered into sleep mode
Led indicator switch is off
Device entered into sleep mode
Led indicator switch is off
Solid
Dark
Dark
Dark
Dark
Flash every 1 second
Solid
GPS has fixed
GPS is in fixing Flash every 1 second
GPS LED (BLUE)
Solid
MV77G

5. Package Content
GPS Main Unit
Cover
User Guide
Genuine Packing Box
x 1
x 2
x 1
x 1
6. Functions Explanation
* SMS command format: TIMER,T1,T2#
* SMS command format:
CENTER,A,center number#
a. Data Upload Time Interval Setting For example:
TIMER,5,3600#
SET TIMER OK
T1 ranges 0/5~18000 or 0(seconds), upload interval when ACC ON, 0 means no
upload, default is 10;
T2 ranges 0/5~18000 (seconds), upload interval when ACC OFF, default is 10;
Example: TIMER,5,3600# ( Means the tracker will
upload data to tracking platform every 5 seconds under
moving status and 3600 seconds under static status)
Method 1:
b. Remote Listen-in Setting For example:
CENTER,A,[phone]#
MONITOR#
SET CENTER NUMBER OK
SET MONITOR MODE OK
MV77G
MV77G
For example: CENTER,A,[phone]# (This means the center number is
[phone], the tracker will just can be controlled by this number)
NOTE: Please remember to add the country code as prefix with the cellphone number!
1. Set up a center number(also means main control
number) for the tracker via this command:
2. Switch the device to monitor mode by this command:MONITOR#
3. Call the SIM number of the tracker from the center number, then the tracker will
pick up the call automatically.

* SMS command format:
CENTER,A,center number#
C. Vibration Alert Setting
* SMS command format: SOS,A,1st number,
2nd number,3rd number#
* SMS command format: SENALM,A,M#
A=ON/OFF, default: OFF;
M=0/1/2, way of alarming, 0 :GPRS only, 1: SMS+GPRS, 2: GPRS+SMS+phone
call, default:1
For example:
SOS,A,[phone],[phone],+861
3800138002#
For example: SENALM,ON,2# ( Means the vibration alarm already been enabled
and the alarm message will be sent via Server, SMS and Call )
1. Please set up the SOS numbers for the tracker via
this command:
2. Enable the vibration alarm via this command:
Method 2:
For example:
CENTER,A,[phone]#
CALLBACK,[phone]#
SET CENTER NUMBER OK
CALL BACK To: [phone]
MV77G
For example:
SOS,A,[phone],
[phone],[phone]#
SENALM,ON,2#
SET SOS NUMBER OK
SET VIBRATE ALARM OK
MV77G
For example: CENTER,A,[phone]# (This means
the center number is [phone], the tracker will just
can be controlled by this number)
For example: CALLBACK,[phone]# (This means the tracker will make a
call to this number [phone], then this number can pick up the call and
monitor the voice )
1. Set up a center number(also means main control
number) for the tracker via this command:
2. Use the center number to send this SMS command:
CALLBACK,the voice monitor number#

Unable to connect to
tracking platform
Check the APN and settings.
Check whether the data service of SIM card is enabled.
Check the balance of SIM card.
Tracker shows offline
Check whether external power is still connected.
Check if the vehicle entered network blind area.
Check the balance of SIM card.
8. Troubleshooting
Type Use
Location drift
In area with poor GNSS signal (tall building around or
basement), drifting may happen.
Check whether vibration happens around to trigger the
accelerator.
Unable to locate
Make sure the top side facing upward without metallic things
shielded.
Make sure it’s not in area with no satellite coverage.
No command reply
Make sure command format is correct.
Vehicle may be in network blind area.
Make sure SIM card is well inserted and has SMS service.
7. Installation Recomendation
1) The decice should face up to the sky.
2) Metal therma barrier of heating layer of the windshield affects the signal.
car cigarette lighter

ID: ID number of the tracker
IMEI: IMEI number of the
APN: APN name,APN user,APN password,
IP: Domain name and port number or IP address,port pumber
TIMER: Moving upload interval; Static upload interval
SPEEDLIMIT: The overspeed threshold
ANGLERPT: Data uploading angle
CENTER: Center number of the tracker
SOS: SOS1,SOS2,SOS3
GMT: Time zone
TRAFFIC: ON/OFF
INTERNET: CLOSED (No Network)
FAILED (Connecting Network or Failure) SUCCESS
(Connected to Network）
NET: NONE (No celluar Signal), HIGH / MED / LOW (Signal
Strength) , 18(Signal value)
GPS: CLOSED (GPS Module Closed); FIXED,N (Positioned
and satellite number); UNFIX,0 (Not Positioned yet)
SPEED: The current speed of the tracker
ACC: ON / OFF (ACC on or off)
POWER: CONNECTED / DISCONNECTED (Power
Connected or Disconnected), 12.5V (Vehicle battery voltage)
SENSOR: ON/OFF (Sensor on or off), LEVEL: 3 (Sensitivity
level 1-9)
STATE: ARM (Arm or Disarm)
9. Full SMS Commands List
Version Inquiry
Status Inquiry STATUS#
Latitude&Longitude
Inquiry WHERE#
VERSION#
Functions Command Format Explanation
Query Commands
Device Reply Example:
ID:19172906549
IMEI:354188046912460
ICCID:898602A51314F1298017
VERSION:MV77G_V2.0.2 BUILD:2023-03-01 16:31:00
LAT:N23.02930,LON:E114.32180,COURSE:0.00,S
PEED:0.00KM/H,DATETIME:2015-05-23 14:39:11
Map URL Inquiry URL#
http://map.google.com/?q=22.557868,113.935090
<0.0km/h 0.0> <2014-12-12 07:32:13>
IMEI:354188047752402
Address Inquiry POSITION#
NOTE: Reply message’s language is determined by device’s
language setting, if get position content failed, device will
reply Google Map location link.
Parameter Inquiry PARAM#

ID: ID number of the tracker
IMEI: IMEI number of the
APN: APN name,APN user,APN password,
IP: Domain name and port number or IP address,port pumber
TIMER: Moving upload interval; Static upload interval
SPEEDLIMIT: The overspeed threshold
ANGLERPT: Data uploading angle
CENTER: Center number of the tracker
SOS: SOS1,SOS2,SOS3
GMT: Time zone
TRAFFIC: ON/OFF
INTERNET: CLOSED (No Network)
FAILED (Connecting Network or Failure) SUCCESS
(Connected to Network）
NET: NONE (No celluar Signal), HIGH / MED / LOW (Signal
Strength) , 18(Signal value)
GPS: CLOSED (GPS Module Closed); FIXED,N (Positioned
and satellite number); UNFIX,0 (Not Positioned yet)
SPEED: The current speed of the tracker
ACC: ON / OFF (ACC on or off)
POWER: CONNECTED / DISCONNECTED (Power
Connected or Disconnected), 12.5V (Vehicle battery voltage)
SENSOR: ON/OFF (Sensor on or off), LEVEL: 3 (Sensitivity
level 1-9)
STATE: ARM (Arm or Disarm)
Alarms Parameters ALARM#
Functions Command Format Explanation
Setting Commands
ID: ID number of device
STATE: ARM(DISARM)(Defense status of device)
SPEED: ON/OFF(alarm status); 30km/h(alarm
value);alarm way
SHIFT: ON/OFF(alarm status); 300m(alarm
value);alarm way
VIBRATE: ON/OFF(alarm status);3(sensitivity
level);alarm way
ACC: ON/OFF(alarm status); 0/1/2(0: ACC ON, 1:
ACC OFF; 2: ACC ON&OFF) (alarm situation);
alarm way ; ;
POWER DOWN: ON/OFF(alarm status);alarm way
PULL: ON/OFF(alarm status);20s(power-off
time);30(acceleration value);alarm way
LOW VOLTAGE: ON/OFF(alarm status);13.8v(low
voltage limit value); alarm way
NOTE: Alarm Ways: SERVER only, SMS+Server,
Server+SMS+CALL
Check IMEI IMEI#
DEVICE IMEI No. : 354188046912458
Change IMEI IMEICHG,
354188046912460#
NEW IMEI No. : 354188046912460
Restore factory settings FACTORY#
RESTORE FACTORY SETTINGS OK
Restart device RESTART#
RESTARTING...1 MINUTE WILL BE OK
APN Setting APN,Network name
[,name,password]#
APN,CMNET# (if no name & Password)
APN,internet,internet,internet# (if with name & Password)
Server Setting
Internet Traffic Switch
Time Zone Setting
If set with Domain Name:
SERVER,1,Domain,Port#
If set with IP:
SERVER,0,IP,Port#
SERVER,1,d.micodus.net,7700#
SERVER,0,47.254.77.28,7700#
TRAFFIC,ON#
TRAFFIC,OFF#
OPEN TRAFFIC OK
CLOSE TRAFFIC OK
GMT,E,8# (if no half time zone)
GMT,W,9,30# (if has half time zone)
NOTE: Parameter : E / W；0 ~ 12; 0/15/30/45
GMT,Time zone
orientation,Whole Time
Zone[,Half Time Zone]#

Add Center Number
Delete Center Number
Data Upload
Time Interval
Heartbeat Packet
Upload
CENTER,A,
center number#
CENTER,D#
TIMER,T1,T2#
HBT,time#
DEL CENTER OK
Example: HBT,3# ( Means the tracker will send hearbeat
data package to server very 3min to keep the network
connected )
Time: 1-60min, default 3min
Example: TIMER,5,3600# ( Means the tracker will
upload data to tracking platform every 5 seconds under
moving status and 3600 seconds under static status)
T1 ranges 0/5~18000 or 0(seconds), upload interval
under moving status, 0 means no upload, default is 10;
T2 ranges 0/5~18000 (seconds), upload interval under
static status, default is 10;
ID: ID number of device
STATE: ARM(DISARM)(Defense status of device)
SPEED: ON/OFF(alarm status); 30km/h(alarm
value);alarm way
SHIFT: ON/OFF(alarm status); 300m(alarm
value);alarm way
VIBRATE: ON/OFF(alarm status);3(sensitivity
level);alarm way
ACC: ON/OFF(alarm status); 0/1/2(0: ACC ON, 1:
ACC OFF; 2: ACC ON&OFF) (alarm situation);
alarm way ; ;
POWER DOWN: ON/OFF(alarm status);alarm way
PULL: ON/OFF(alarm status);20s(power-off
time);30(acceleration value);alarm way
LOW VOLTAGE: ON/OFF(alarm status);13.8v(low
voltage limit value); alarm way
NOTE: Alarm Ways: SERVER only, SMS+Server,
Server+SMS+CALL
Set the angle upload ANGLEREP,X,A,B#
ANGLEREP,OFF#
Example: ANGLEREP,ON,30,3# ( Means the tracker
will send a data supplement when the angle change
exceeds 30 degrees and lasts for 3 seconds)
X=ON/OFF, default：ON;
A=5～180 degrees, diversion angle degree,
default：30 degrees；
B=2～5 seconds, detecting time, default：3 seconds,
CANCEL UPLOAD ANGLE OK
Mileage Statistics MILEAGE,A,B#
MILEAGE#
Example: MILEAGE,ON,5000# (Means the initial
mileage value is 5000KM)
A=ON/OFF, On/Off mileage calculation, default: Off
B=0～999999，Mileage initial value , unit：km ;
default: 0, mileage return to zero
Query current mileage
Add SOS
Administrator Number
SOS,A,1st number,
2nd number,3rd number#
Set 3 numbers at a time:
SOS,A,13800138000,13800138001,13800138002#
Set the first numberseparately:
SOS,A,13800138000#
Set the second number separately:
SOS,A,,13800138001#
Means to set 3rd number separately:
SOS,A,,,13800138002#
Delete SOS
Administrator Number
Directly delete the number:
SOS,D,13800138000#
Delete 1st number:
SOS,D,1#
Delete 2nd number:
SOS,D,2#
Delete the 2nd and 3rd number:
SOS,D,2,3#
Example: CENTER,A,[phone]#
NOTE: Please remember to add the country code as
prefix with the cellphone number!
SOS,D,1st number,2nd
number,3rd number# or
SOS,D,1,2,3#
GMT,E,8# (if no half time zone)
GMT,W,9,30# (if has half time zone)
NOTE: Parameter : E / W；0 ~ 12; 0/15/30/45

Overspeed Alarm
Setting
SPEED,A,B,M#
SPEED,OFF# CANCEL OVERSPEED ALARM OK
Sensor Sensitivity
Arm manually ARM#
LEVEL,A#
Set the device into arm mode
Disarm manually
Auto Arm By ACC
Voice Monitor Mode
DISARM#
ACCARM,ON,M#
ACCARM,OFF#
MONITOR#
Set the device out of arm mode
Functions Command Format Explanation
Alarm Commands
Example: SPEED,ON,120,1# ( Means the speed limit
is 120km/h and the alarm way is via SMS and Server )
A=ON/OFF, open or close over speed alarm, default：
OFF
B=1～255(km/h), speed limit, default：100(km/h);
M=0/1/2, way of alarm, 0 : SERVER only, 1:
SERVER+SMS, 2: SERVER+SMS+CALL; default: 1
Example: HBT,3# ( Means the tracker will send hearbeat
data package to server very 3min to keep the network
connected )
Time: 1-60min, default 3min
Example: LEVEL,4# ( Means shake sensor level
is set to 4 )
A=1-9
NOTE: 1-9 is from week to strong vibration
Example: ACCARM,ON,60# (Means the tracker will
enter into arm status automatically when the ACC off
more than 60 seconds)
Arm Time: M=5-1800s, default: 60s
NOTE: 1. Both center number and SOS numbers
can monitor voice;
2. Before monitoring the voice around the device,
the user must change the device to this monitor
mode firstly.
Close auto arm function
Example: TIMER,5,3600# ( Means the tracker will
upload data to tracking platform every 5 seconds under
moving status and 3600 seconds under static status)
T1 ranges 0/5~18000 or 0(seconds), upload interval
under moving status, 0 means no upload, default is 10;
T2 ranges 0/5~18000 (seconds), upload interval under
static status, default is 10;
Track Mode TRACK#
NOTE: After used the voice monitor mode, user can
switch the device back to track mode by this
command.
Call Back CALLBACK,
Number for Voice Monitor#
Example: CALLBACK,[phone]# (Means the
tracker will make call to this number
[phone],then this number [phone]
can pick up the call to monitor the voice)
N: Number for Voice Monitoring
NOTE:1.Please send this monitor command via the
center number;
2. Any number can be set up to monitor the voice, the
tracker will make a call to the number N and it will can
pick up the call to monitor voice
Example: ANGLEREP,ON,30,3# ( Means the tracker
will send a data supplement when the angle change
exceeds 30 degrees and lasts for 3 seconds)
X=ON/OFF, default：ON;
A=5～180 degrees, diversion angle degree,
default：30 degrees；
B=2～5 seconds, detecting time, default：3 seconds,
Example: MILEAGE,ON,5000# (Means the initial
mileage value is 5000KM)
A=ON/OFF, On/Off mileage calculation, default: Off
B=0～999999，Mileage initial value , unit：km ;
default: 0, mileage return to zero
Set 3 numbers at a time:
SOS,A,13800138000,13800138001,13800138002#
Set the first numberseparately:
SOS,A,13800138000#
Set the second number separately:
SOS,A,,13800138001#
Means to set 3rd number separately:
SOS,A,,,13800138002#
Directly delete the number:
SOS,D,13800138000#
Delete 1st number:
SOS,D,1#
Delete 2nd number:
SOS,D,2#
Delete the 2nd and 3rd number:
SOS,D,2,3#
Example: CENTER,A,[phone]#
NOTE: Please remember to add the country code as
prefix with the cellphone number!

Vibration Alarm
Setting
Shift Alarm Setting
ACC Status
Change Alarm
SENALM,A,M#
SENALM,OFF# CANEL VIBRATE ALARM OK
SHIFT,A,B,M#
SHIFT,OFF# CANCEL SHIFT ALARM OK
ACCALM,A,B,C,D,M#
ACCALM,OFF# Cancel ACC alarm function
Power Disconnect
Alarm
Low Voltage Alarm
Setting
LVALM,A,B,M#
LVALM,OFF#
LVALM,A,B,M#
LVALM,OFF#
CANCEL LOW VOLTAGE ALARM OK
Close power disconnect alarm
Example: SENALM,ON,2# ( Means the vibration alarm
already been enabled and the alarm message will be sent via
Server, SMS and Call )
A=ON/OFF, default: OFF;
M=0/1/2, way of alarming, 0 :GPRS only, 1: SMS+GPRS, 2:
GPRS+SMS+phone call, default:1
Example: SHIFT,ON,100,1# ( Means Setting 100 meters shift
alarm range, when the ignition turned off, vehicle’s 100 meters’
shift will trigger the alarm. )
A=ON/OFF; default:ON
B=Shift Distance (Range: 100-9999m)
M=0/1/2; way of alarm, 0 : GPRS only, 1: SMS+GPRS, 2:
GPRS+SMS+CALL, default:1
Example: ACCALM,ON,0,13.5,12,2#(Means the tracker will
send alarm message out via Server, SMS and Call when the
engine is start)
A=ON/OFF, Default: ON;
B: 0/1/2; 0: ACC ON Alarm; 1: ACC OFF Alarm; 2: ACC
ON&OFF Alarm; Default:2
C=Voltage threshold of ACC ON ( Scope: 9-95V, supports
decimals)
D= Voltage threshold of ACC OFF ( Scope: 9-95V, supports
decimals)
M: 0/1/2 (way of alarm): 0 : Server only, 1: SMS+Server, 2:
SMS+Server+Call, Default:1;
Example: LVALM,ON,13.2# (Means when the voltage of the
car battery is lower than 13V, the tracker will send alarm
message via Server, SMS and Call )
A=ON/OFF, default：ON;
B=9-95V (Low Voltage Threshold Value，Supports decimals
such as 13.5v)
M=0/1/2, way of alarming, 0: Server only, 1: Server+SMS, 2:
Server+SMS+Call,default:1；
Example: LVALM,ON,13.2# (Means when the voltage of the car
battery is lower than 13V, the tracker will send alarm message
via Server, SMS and Call )
A=ON/OFF, default：ON;
B=9-95V (Low Voltage Threshold Value)
M=0/1/2, way of alarming, 0: Server only, 1: Server+SMS, 2:
Server+SMS+Call,default:1；
Example: SPEED,ON,120,1# ( Means the speed limit
is 120km/h and the alarm way is via SMS and Server )
A=ON/OFF, open or close over speed alarm, default：
OFF
B=1～255(km/h), speed limit, default：100(km/h);
M=0/1/2, way of alarm, 0 : SERVER only, 1:
SERVER+SMS, 2: SERVER+SMS+CALL; default: 1
Example: LEVEL,4# ( Means shake sensor level
is set to 4 )
A=1-9
NOTE: 1-9 is from week to strong vibration
Example: ACCARM,ON,60# (Means the tracker will
enter into arm status automatically when the ACC off
more than 60 seconds)
Arm Time: M=5-1800s, default: 60s
Example: CALLBACK,[phone]# (Means the
tracker will make call to this number
[phone],then this number [phone]
can pick up the call to monitor the voice)
N: Number for Voice Monitoring
NOTE:1.Please send this monitor command via the
center number;
2. Any number can be set up to monitor the voice, the
tracker will make a call to the number N and it will can
pick up the call to monitor voice

E-mail: [email protected]
Skype: MiCODUS
10. Any Questions?
11. Download the APP
Download on the
APP Store
Download for
Android
Search "MiCODUS" in iOS APP store or Google Play Store, or
just scan the QR code as below to download MiCODUS APP:
SOS Alarm
SOSALM,A,M#
SOSALM,OFF#
Example: SOSALM,ON,2# (This means the SOS alarm will be
sent via server, SMS and call)
A=ON/OFF, default ON;
M=0/1/2, ways of alarming, 0: Server only, 1: SMS+Server, 2 :
SMS+Server+Call, default：2；
Close SOS alarm function
Device Pulled
Out Alarm PULLALM,X,M,T#
Example: PULLALM,ON,2,20#
X=ON/OFF, ON= Turn ON the pull out alarm, by default ON;
M= alarm reporting mode, M=0 SERVER only; M=1
SMS+SERVER,M=2 GPRS+SMS+CALL;
Default: 1
T= Power-off detection time, range: 2-60 seconds, default 20
seconds;
Example: SHIFT,ON,100,1# ( Means Setting 100 meters shift
alarm range, when the ignition turned off, vehicle’s 100 meters’
shift will trigger the alarm. )
A=ON/OFF; default:ON
B=Shift Distance (Range: 100-9999m)
M=0/1/2; way of alarm, 0 : GPRS only, 1: SMS+GPRS, 2:
GPRS+SMS+CALL, default:1
Example: ACCALM,ON,0,13.5,12,2#(Means the tracker will
send alarm message out via Server, SMS and Call when the
engine is start)
A=ON/OFF, Default: ON;
B: 0/1/2; 0: ACC ON Alarm; 1: ACC OFF Alarm; 2: ACC
ON&OFF Alarm; Default:2
C=Voltage threshold of ACC ON ( Scope: 9-95V, supports
decimals)
D= Voltage threshold of ACC OFF ( Scope: 9-95V, supports
decimals)
M: 0/1/2 (way of alarm): 0 : Server only, 1: SMS+Server, 2:
SMS+Server+Call, Default:1;
Example: LVALM,ON,13.2# (Means when the voltage of the
car battery is lower than 13V, the tracker will send alarm
message via Server, SMS and Call )
A=ON/OFF, default：ON;
B=9-95V (Low Voltage Threshold Value，Supports decimals
such as 13.5v)
M=0/1/2, way of alarming, 0: Server only, 1: Server+SMS, 2:
Server+SMS+Call,default:1；
Example: LVALM,ON,13.2# (Means when the voltage of the car
battery is lower than 13V, the tracker will send alarm message
via Server, SMS and Call )
A=ON/OFF, default：ON;
B=9-95V (Low Voltage Threshold Value)
M=0/1/2, way of alarming, 0: Server only, 1: Server+SMS, 2:
Server+SMS+Call,default:1；