
The VT401 is a wired vehicle GPS tracker using satellites to calculate its precise
location and both GSM and GPRS technology for communications.
It may be used with any +12 volt DC power s
upply, negative ground application.
A GSM SMS mobile phone, not supplied, is required to communicate and control this
The tracker transmits its latitude and longitude coordinates only to authorized mobile
phone numbers of your choice or via GPRS t
For GPRS communications, please refer to the separate manual.
Mongoose Australia PTY Limited
Mongoose (New Zealand) Limited
The information contained in this manual was correct at time of publ
Please visit our website for any updates of this manual.

Thankyou for purchasing this
Please read this manual carefully before using this product.
Keep this manual handy for future reference.
Setting user phone numbers
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Cancel automatic tracking
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Adjusting time for daylight saving
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Use of this product or certain features may infringe the rights or invade the privacy of
others depending on local or countrylaw.
The use of mobile GSM transmitting/receiving devices, such as this GPS tracke
restricted in certain locations, especially aircraft. Itis your responsibility to ensure correct
Mongoose is not responsible for the non
operation of this product should GPS or GSM
signals not be available or be able to be

Insert the SIM card, theninstall the tracker into the vehicle (see page 11) .
the text command 7000000 Thi
Set your mobile phone as the main USER by sending the following textcommand from
your mobile phoneto the tracker;
factory default password is 0000)
send the following text command;
888 (Function) + password(0000)
The tracker will reply by text message with its latitude & longitudelocation.
No mapping software is supplied or required to be purchased as freely available mapping
is available on the internet on websites such as Google Maps/Earth.
pment may also be used such as GPS navigators, PDA’s, internet capable
mobile phones and laptop computers.
The information sent from the tracker to
mobile phone will look like this;
using one of the Google websites, simply type in the latitude and longitude in this
It is important to include the ‘
GPS location is then displayed (the above location is Auckland’s harbour bridge)

SETTING THE MAIN PHONE NUMBERS (maximum 3)
Up to three mobile phones can communicate with this GPS tracker.
t programmed, the tracker will not operate correctly.
he ‘user number’ sets priority. ‘1’ is main user.
If the SOS function is used, the sequence is 1, 2 then 3
so set the following carefully in
ity’ of your mobile phone, or any ‘user’, as
er needs to identifythe caller soit can respond.
*phone number(max’ 20 numbers)*password* user number**
To change one of the users, simply re
send the command for the user being
A password is used in all SMS text commands and is composed of 4 numbers.
The password should only be changed to prevent others from using the tracker if it gets
The old password is now replaced
write it down or record it in your mobile phone.
All text commands now use your password, not ‘0000’.
DO NOT CHANGE THE PASSWORD IF THE GPRS MODE IS USED.

You can manually request the current location of the tracker 2 ways;
a. Voice calling for location
Any of the three ‘user’ phone numbers can call the tracker to request its location.
Dial the phone number of the tr
it automatically hangs up after 3
The tracker will reply by text message with its latitude & longitude location.
GET LOCATION AT PROGRAMMED TIME
You can programme the tracker to automatically report its position at time intervals of
your choice. Reporting time is either minutes or whole hours.
Hour(s) time range is 62~99 62 = 2 hours ~ 99 = 39 hours
Automatic tracking will continue until the tracker receives the ‘cancel’ command.
Please note that text messages from the tracker incur SIM card costs.

restricting area of travel
You can restrict travel towithin a certain area bysetting a ‘geo
fence is defined bya centre
-point (where it currently is) with a permitted radius of travel
maximum of 1000 kilometres (
If the tracker moves outsidethis permitted area, it will make a telephone
mobile phone thatset the geo
fence. It will also send a text alert with its location and includes
‘STATE: OS’ to show the geo
fence area has been exceeded.
The tracker will repeat the above when the tracker re
‘STATE:RS’ will show on the text message
(Radius is from 1.0 to 999.9)
Radius of less than 1 km, such
00 metres) can be set but may not be accurate
Press the SOS button for more than 10 seconds.
The tracker will make a telephone call alert* to the first user telephone
this is an audible alert only, no voice communica
It will send then its location, including ‘SOS’, to all stored users.
If the ‘telephone call alert’ is off, it will not make a telephone call and only send text
* The tracker cannot be used as a telephone as it do
es not contain a microphone or
speaker. The telephone ring is an alert only.

If the alarm/SOS function is used or the vehicle travels out of or into a geo
ert by making a normal telephone call to the users mobile phone as
well as sending a text message withits location.
No voice communication is possible with this product
the call is an audible alert only.
Telephone call alerts can be programmed off but
SMS text alerts will still be sent.
CAR ALARM ACTIVATION ALERT (O
The tracker can be connected to a vehicles car security system
warning if the alarm is activated.
Any sounding of the alarms siren longer than 10 seconds will activate the SOS function
intrusion should not cause an alert
unless longer than 10 seconds
depends on the make and model of alarm.
This feature may not be compatible with all car alarm systems.
l ‘users’ the meaning of the SOS alert as it may be an alarm
activation or a call for help or assistance.
ADJUSTING TIME (DAYLIGHT SAVINGS)
The time on received messages from the tracker can be adjusted to allow
(Australia/NZ uses ‘W’ plus hours ahead of GMT)

may require additional parts/labour)
The tracker provides you with the ability to immobilise a vehicles engine independently of
any other security system or device.
Only use this feature it is known that the vehicle is not moving. This can
from received GPS data which shows vehicle speed. Safety consideration of all person
and propertyis paramount.
Our recommendation is immobilisation of the starter motor
which will prevent engine
and does not affect current running condition
The use of this feature may not be permitted in some countries or states and use is
therefore at the owners discretion.
The installer of this product has the right to refuse connection/use of this feature if
prohibited by law or considers it not suitable for the intended purpose.
Mongoose accepts no responsibility for unlawful, incorrect or inappropriate usage or
(This feature can be used for other purposes as the output of the tracker is a text
trolled ‘ground’ output for ON & OFF)
Engine immobilisation is not immediate, it requires confirmation before the initial
Confirmation required to execute th

There may be occasions when your vehicle is not going to be used for some time but
you wish to maintain its batterypower for as long as possible.
You can turn off the GPS reception to preserve batterylife but it will remain connecte
the GSM network so it can receive GSM commands when you wish to turn the GPS
function back on. A built
in vibration sensor automatically turns the GPS back on if it
detects sufficient movement (see below).
The tracker contains a vibration sensor to monitor if the vehicle is moved so it can re
establish GPS reception if turned OFF by the pre
vious power saving command.
There is no alarm function associated with this feature.
If sufficient vibration is detected, the tracker will automatically re
If vibration is not excessive, the tracker may not turn back on unt
If no further movement is detected within 5 minutes, GPS will turn off.
Users can send 222 + user passwords to re
start the GPS tracking function.
CONFIRMING MODE OF OPERATION (FACTORY DEFAULT = SMS TEXT)
The tracker can communicate its position by either SMS text or direct to a
computer or website via GPRS. This manual is specific to SMS text mode.
nfirm SMS text mode send the command below.
See separate manual for GPRS mode operatio

When the trackers nominal working voltage is lower than normal, it will alert all users 3
times at 1 minute intervals before it turns off and becomes inoperable.
The alert will contain location information plus ‘STATE: LP’
1. Keep the unit dry. Any liquid may destroy or damage theinside circuitry.
2. Don’t use or storethe unit in dusty places.
3. Don’t keep the unitin extremes of heat and cold.
4. Handle carefully. Do not drop, vibrate or shake i
5. Clean with dry cloth. Don’t clean in chemicals or detergent, etc.
6. Do not disassemble, tamper or attempt any repair.
7. Don’t use other antennas. Thismay interfere with the reception/transmission and may
ing, abuse and misuse with the unit will void any warranties.
indicates GPS signal state

Has the unit been turned ON and battery charged ?
Has the mobile phone been programmed to the tracker ?
Is the SIM card inserted correctly ?
Is there sufficient SIM card credit ?
Check the phone number of the SIM card
Check text commands areentered correctly
Is the identity of the mobile phone hid
Has the unit been installed correctly ?
Check LED on unit forsignal reception.
Is the unit indoors ? Try outdoors for a stronger signal.
Check the SIM cardis inserted correctly.
Does not respondto voice calls
been programmed to the tracker ?
Check the phone number of the SIM card.
Check that the SIM cardis installed correctly.
Is your mobile phone caller ID been turned off ?
Didn’t receive a text reply
GSM network may be busy or overloaded.
Incorrect text command sent to the tracker
Location report does not include
data for latitude & longitude.
Position request too soon after power
-upIs the vehicle inside a build
Move vehicle outside and re
Any updates to this manual can be found on ourwebsites

sional installation of this product to ensure correct connections
and safety and reliability of the this and the vehicle.
Locating the tracker and antennas
For security reasons, the tracker module should be concealedfrom view to prevent tamp
Typical locations are behind the glove box, up high behind the dashboard instruments or
Final fitting and location should becompleted once full and correct operation has been verified.
antenna is supplied. Typical location is above the vehicles interior
The GPS antenna must be mounted where it can ‘see’ the skyand not obstructed by metal or
The antenna is magnetic to allow it to adhere above mo
st metallic surfaces, otherwise affix
with other methods such as double sidedpads, cable ties or velcro.
Ideally, it should be concealed from view so as not to alert anyone that a GPS tracking device
isfitted. GPStracking devices should be covert, so th
e antenna should be hidden from view.
This should be mounted where it can be reached from the drivers seat.

ensure no power is connected
Before connecting any power to this tracker, remove the 4 screws at the
of the module. Withdraw the printed circuit board from the case. Notice the SIM card
slot. Slide the SIM card fully into the slot noting the correct orientation. Refit the circuit
board and replace the screws.
) (relay required for + positive sirens)
Connection of the SOS button and vehicles car alarm (if vehicle equipped)
For (+) positive siren connection (Fig A);
relay, not supplied, to convert positive siren
output to negative and connect as shown in the diagram below.
) negative siren connection (Fig B);
onnect siren trigger wire to yellow wire of with a diode in
prevent pressing SOS button sounding the siren.
noperative from a pulsed horn honk
input must be constant ground

For greater accuracy and reliable operation, this tracking device should only be used outdoors
to enable it to receive GPS transmissions from m
Operation inside warehouses, workshops, garages, parking buildings, etc, or any other
shielded location that prevents the tracker from receiving satellite information may result in
operation or inaccurate co
accuratethe location.Heavy overcastweather will affect GPS signals and accuracy.
This tracker requires connectionto the GSM network to enable 2 waycommunication with
your mobile phone. Signalstrength for certain loca
tions can be checked on your mobile
use freeGoogle Maps / Earth from any computer.
Can also be tracked on mobile equipment such as GPS navigation units, PDA’s, laptops or
internet capablemobile phones..
See our Mongoose website for other mapping options including GPRS.
MTK program, GSM 900/1800/850/1900
Position & Velocity Accuracy
10 meters, 2D RMS 0.1 m/s
1 us synchronized to GPS time
1.0 sec average 3.8 sec average 42 sec average
18,000 meters (60,000feet) max.
515 meters/second (1 000knots)max.

Web site: www.mongoose.com.au
Head Office: 6 Hornsby Street, Hornsby
Email: sales@mongoose.com.au
Unit8, 871 Boundary Road,
Email: sales@mongoose.com.au
Web site: www.mongoose.co.nz
41A View Road, Glenfield, Auckland