Suntech - ST20U

The Suntech ST20U is an expandable module compatible with CANBUS J1939/J1708/ISO15765 (OBDII) protocols, designed to provide accurate and detailed data on vehicle performance and management. This device allows you to obtain key information about the vehicle, such as odometer reading, total fuel used, speed, idle fuel used, coolant temperature, oil pressure, engine RPM, DTC codes, total idle time, and fuel efficiency.

Installation of the ST20U is straightforward, but it is recommended to follow the safety instructions provided by the manufacturer. It is important to ensure that the vehicle is turned off and the ignition switch is in the off position, not in the accessory position. Additionally, care should be taken not to cut the wires connecting the module to the vehicle's engine, as this can affect the performance and accuracy of the collected data.

The ST20U is compatible with J1939 (250/500 kbps) / J1708 heavy-duty vehicle protocols, as well as the ISO15765 CANBUS protocol for light vehicles. It has a 5V power supply (from ST3300/ST4300) and consumes minimal power in both active and sleep modes. With a temperature range of -45°C to +85°C, the ST20U is capable of operating in a wide variety of environmental conditions.

Highlighted features of the Suntech ST20U:

  • Compatible with J1939/J1708 heavy-duty vehicle protocols and ISO15765 CANBUS protocol
  • Provides detailed data on vehicle performance and management
  • Easy installation and firmware updates using OTA
  • Low power consumption in both active and sleep modes
  • Wide temperature range to operate in diverse environmental conditions
This information only is for informational purposes only, Plaspy does not have relationship with the device's manufacturer, for more information check the manufacturer's website or user manual.

Set Up ST20U


To set the tracker send the following commands by SMS messages, the ID is the last 6 numbers of IMEI excluding the last number.
for example, if the IMEI is iorK4YRScR97ngY the device Id is EHvAgC

Type the IMEI number Your Plaspy device ID is cRVyJwcSjgO4bBRmO616u9bp
  1. Set the operator APN and GPRS server
    SA200NTW;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;10;{{apn}};{{apnu}};{{apnp}};;8888;;;;
  2. Set the update interval to 60 seconds
    SA200RPT;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;60;60;60;3;0;0;0;0;0

To check settings SA200CMD;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;PresetA