User's Manual

TR-151A page 3
1. Introduction and Features
1.1 Introduction
TR-151A is a durable and water resistant GPS/GSM/GPRS tracker. Users can install TR-151A
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-151A is designed to
equip with high capacity of Li-ion battery for long operation time. There is one SOS button on the
TR-151A for emergency help. It is very easy to install or hide TR-151A in the car to perform
tracking. TR-151A 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-151A. TR-151A will call back to the returned number in the SMS. And then user can listen to the sound or
voice around TR-151A. While users listen to the sounds or voice around TR-151A, people who around TR-151A
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-151A enters the restricted areas or to receive alarm message if TR-151A gets out the permissible
areas. Please refer to page 26-28 to get the detailed setting method of Geofence.