TR-151 is a durable and water resistant GPS/GSM/GPRS tracker. Users can install TR-151 on
vehicles or assets for tracking. It can send out SMS with its location (longitude and latitude) to
user’s cell phone by GSM network or to personal computer by internet connection of GPRS
network. Then users can track the location of their vehicles or assets. TR-151 is designed to
equip with high capacity of Li-ion battery for long operation time. There is one SOS button on the
TR-151 for emergency help. It is very easy to install or hide TR-151 in the car to perform tracking.
TR-151 is ideal application for vehicle tracking and equipment/assets monitoring.
1.2 Features
z High sensitive GPS chipset
z Combination of GPS ,GSM/GPRS wireless network
z Durable and water resistant GPS tracker
z Easy to install or hide in the car to perform tracking. No external wires needed.
z Ideal application for vehicle tracking and equipment/assets monitoring
z Optional external antenna for GPS reception
z Rechargeable 2100mA high capacity Li-ion battery for long operation time
z External DC power supply
z Configuration can be done via SMS commands or by application software via USB interface.
z SOS (emergency) button.
z Voice monitor function to monitor the sound/conversation live.
z Geofence function
NOTE: Voice Monitoring function allows user to send a SMS with voice monitoring command by a cellular phone
to TR-151. TR-151 will call back to the returned number in the SMS. And then user can listen to the sound or voice
around TR-151. While users listen to the sounds or voice around TR-151, people who around TR-151 won’t know
they are under voice monitoring. Please refer to page29 to get the detailed method of making voice monitoring.
NOTE: Geofence feature allows user to set up to 10 permissible or restricted areas whose shape is either circular
or rectangular for tracking the vehicles or monitoring the equipment/assets. Users can choose to receive alarm
message if TR-151 enters the restricted areas or to receive alarm message if TR-151 gets out the permissible
areas. Please refer to page 26-28 to get the detailed setting method of Geofence.
TR-151 page 3
1.3 Hardware
GSM module:
Siemens GSM 850/900/1800/1900
Operating temperature:
Antenna Type:
Dimension:
Battery:
LED indicator:
Interface:
Casing:
GPS external antenna port:
-20° to 55° C
GPS patch antenna
86.7*48.9*32.5 mm
2100mA rechargeable Li-ion battery
For Charging, GPS, GSM and Status.
Mini USB port for connecting to PC
Water resistant (IPX4)
MMCX port
TR-151 page 4
2. Start-up
2.1 Accessories
TR-151
USB Cable
Mounting bracket with magnet (optional)
AC charger
Battery
TR-151 page 5
2.2 Install SIM card and Battery
z Use a coin or screwdriver to loosen the screw on back cover.
z Lift up the back cover and remove it as the direction shown.
TR-151 page 6
zPush forward the cover of SIM card slot to the position marked with “OPEN”. Then lift up
the cover.
zInsert the SIM card with its metal contacts facing down and the cut corner at the top left.
Note: It is suggested to disable the SIM PIN protection function (asks SIM PIN entry while turn
on the device) by your cellular phone before installing the SIM card in TR-151
zPlug the battery connector into socket. Be aware that the red wire must be plugged on the
top side.
TR-151 page 7
zPlease put the connector wire under the battery, and then put the battery into battery
compartment.
NOTE: After installing the battery, the status LED will emit red light. After the LED go out, please
wait for 5 seconds before turning on the power.
NOTE: Please take out the battery if you do not use TR-151 for a long time.
TR-151 page 8
2.3 Charging the battery
Before using TR-151 for the first time, please fully charge it by connecting to AC power adapter
under the power-off condition. (The attached battery is specially designed for TR-151. Please do
not use other type of battery; otherwise it will damage the device. If you need to change the
battery of TR-151, please contact your local dealer.) You can also charge the TR-151 by connect
it to PC or Notebook via USB cable. (The power of PC or of notebook should be turned on.)
TR-151 page 9
2.4 TR-151 with magnetic holder
z Insert the TR-151 with the Power button side facing out.
z Push TR-151 into the holder until it clicks in position.
TR-151 page 10
zThere are 4 circular magnets on back of the magnetic holder for attaching TR-151 onto the
metal material of vehicle or machine.
zTo remove TR-151, slightly push outward the two sides of holder, and slide out the TR-151.
TR-151 page 11
2.5 Turn on/off the device
●Turn on: After installing the battery, the status LED will emit red light. After the LED go out,
please wait for 5 seconds before turning on the power. Press the power button for 3~4
seconds. When the device is turned on, GPS will do cold start to get fixed its position for
the first time with the green GPS LED on. If location is fixed, the LED will blink. It is
suggested that you stay at outdoor places or near the window where TR-151 can receive
the better GPS signal when you turn on the device.
NOTICE: If it does not successfully get the location fixed after turning the power on,
TR-151 may be located in the weak signal area or on the move.
●Turn off: Press the Power button for 3~4 seconds. When the power is turned off, LED will
go out.
2.6 Button Description
TR-151 page 12
Power button
SOS button
Indicator
1. Power On: Press and hold the power button for 3-4 seconds. The
status LED will flash 2 times
2. Power Off: Press and hold the power button for 3-4 seconds. The
status LED will flash 1 time.
3. Enter parking mode: Press the power button once to enter parking
mode. When power button is pressed, LED will flash slowly (once
per second) first, and then enter parking mode. The flash number is
the second number you set in Park_Time.
Press the SOS Button, the status LED will flash 3 times to indicate the
button is activated. TR-151 will immediately send out emergency
messages along with its GPS report to 3 preset phone numbers.
1. GSM LED:
y Voice monitoring: LED keeps on.
y When no SIM card is inserted, network searches in progress,
ongoing user authentication, or network login in progress: LED
blinks quickly (about once per second).
y In standby mode: LED blinks slowly (once for 3 seconds)
2. GPS LED: The LED keeps on when it is fixing the location. The LED
blinks when TR-151’s location has been fixed. When GPS function
is disabled, GPS LED will be off.
3. Status LED:
y When battery low: LED keeps on.
y When enter setup mode: LED keeps on.
y Press power button to turn on: LED flashes quickly 2 times.
y Press power button to turn off: LED flashes quickly 1 time.
y When SOS button is pressed: LED flashes slowly 3 times.
y When error occurs: LED flashes quickly 5 times.
y Parking mode: When power button is pressed, LED will flash
slowly (once per second) first, and then enter parking mode. The
flash number is the second number you set in Park_Time. If you
want to stop parking mode, press the power button again. The LED
flashes quickly 3 times and it will exit parking mode.
y Sleeping mode: LED will flash slowly 60 times and then it enters
sleeping mode.
4. Power LED:
y The LED emits orange light when charger is plugged for charging
the battery.
y The LED goes off after the battery has been fully charged.
TR-151 page 13
USB connector
There are two functions of the USB connector:
1. Connect TR-151 to PC by a Mini USB cable and setup all its
features and functions from application software through PC.
2. Charge the battery by connecting a USB cable.
Microphone For voice monitoring use.
External antenna
For you to connect a MMCX external GPS antenna.
connector
TR-151 page 14
2.7 DIP switch
On Off
Switch 1
Switch 2
Switch 3
Switch 4
Note: You can set the switch by a little tweezers or pen point or toothpick.
Enable TR-151 to automatically power
on when it is connected to external
power.
All LED works as user mode. Make all LED except status LED go off
Setting Mode (Status LED keeps
emitting red light)
Sleeping Mode User Mode
Users have to press the power button
to power on TR-151 whether external
power is connected or not.
for secret tracking. Status LED works
as user mode.
User Mode
TR-151 page 15
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