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Vehicle Trackers


Hibernating Trailer Tracker

The ST330 is a compact and standalone GPS tracking device designed mainly for high-valued standing and mobile assets like trailers, containers, trains and even water-exposed assets like yachts.

The ST330 has a highly durable IP67 water resistant and robust casing. This GPS Tracking device can operate for long periods of time using its built-in battery (5.2 Ah or 7.8 Ah), without requiring direct access to external power supplies. Depending on application needs, the ST330 can be configured for various types of functions such as periodic reporting, SMS-wake up reporting, upon-movement reporting and so on.

The ST330 is equipped with a sophisticated built-in 3-axis accelerometer enabling it to detect asset movement and transmit an alert report to the server. Among its many alerts, particularly useful alerts are the ones sent if the device is attached or detached from the holder.

In addition, users can get more benefits from the ST330 as shown below.

Key Features

  • Advanced standalone and self-powered tracking device for standing/fixed assets
  • Highly durable IP67 weatherproof casing with fixing holder/ magnetic buttons (Option)
  • 5.2 Ah big lithium-ion battery rechargeable quickly within 4 hours – 7.8 Ah bigger battery (Option)
  • Anti-explosion casing for Gas/Petrol sites (Option)
  • Built-in 3-axis accelerometer for motion detection
  • 15-pin Event lines
  • Up to 60 zones of polygonal / circular geo-fencing
  • Alerts when separated from its holder
  • OTA configurable and firmware upgradable
  • Installed very quickly within 30 seconds by using hands
  • Location link on Google Map via SMS
  • Anti-theft
  • Route deviation
  • Transferring data via an external RS232 device


GPS Specifications
Receiver Type 56 channel
Galileo* E1B/L1, Compass* ready
Update Rate 10 Hz
AGPS available
Accuracy *1) Position 2.5m CEP
Acquisition *2) Cold starts 29s
12s (AssistNow Autonomous)
Aided starts < 1s
Hot starts < 1s
Sensitivity *3) Tracking -162dBm
Reacquisition -160dBm
Cold strat -148dBm
  • * 1) All SV @ –130 dBm
  • * 2) It depends on aiding data connection speed and latency.
  • * 3) It was demonstrated with a good active antenna.
GSM/GPRS Specifications
Frequency & Sensitivity GSM 850 / 900MHz -104dBm
DCS1800 / PCS1900Mhz -102dBm
GPRS Multi-slot Class 12
Support all 4 coding schemes (CS-1, CS-2, CS-3 and CS-4)
Technical Specifications
Housing Dimensions 97,4(W) x 130(L) x 37,5(T) mm
101.6 x 131x 43.8 mm (including the Holder)
Weight 189g (without battery), 285g (with 5.2A/h battery)
330g (with 7.8A/h battery)
Certificates CE, FCC, RoHS, GCF
Operating Temperature -30 ~ +80℃ (with vehicle power)
Power Supply DC 8V ~ 33V *Main power +/- inversion protection
Electric Protection Protection against ESD and overvoltage
Back-up Battery Rechargeable 3.7V, Lithium-Ion 5.2Ah or 7.8Ah (Optional)
Battery Endurance Time(**)
Reporting once a day
Reporting every 5 minutes
Reporting every 10 minutes
Battery 5.2Ah / Battery 7.8Ah
Approx. 4 Years / 7 Years
Approx. 21 days / 35 days
Approx. 33 days / 55 days
Antenna Type Internal/External GPS antenna, Internal/External GPRS antenna
Motion detection Built-in 3-axis accelerometer
Data storage 2000 locations for lost coverage scenario
GPRS Communications TCP/UDP
Setting mode by USB cable or GPRS or SMS
Firmware upgradable remotely (OTA: Over-The-Air)
Power consumption Active mode 70~80 mA@12V
Typical (3 min. reporting) 40~50 mA @12V
Sleep mode less than 2 mA @12V
Event Inputs Ignition,
3 inputs for panic button, door sensor, 1 analog (Option)
Event Outputs 2 Outputs: Open drain output up to 300mA
Optional Event 7 extra lines to be used for various purposes such as:
Digital inputs/outputs, Analog, CANbus, RS232, RPM,
Odometer, and 1-Wire interface (i-Button / Temperature monitoring)
(**): Reference only. It varies subject to the environment.