It is the simplest tracker with built-in GLONASS/GPS- and GSM-antennas, without built-in battery, with the minimum necessary functionality and the lowest possible price.
The latest configurator version - NTC Configurator (download)
The latest firmware for SMART S-2420 - Firmware v.01.01.06 of July 15, 2019 (download)
Requires installation of NTC Configurator v.3.1.1
Navtelecom, LLC. Telematics systems. 2019