Navtelekom - SMART S-2421

The SMART S-2421 is a compact GLONASS/GPS vehicle tracker designed for dependable telematics and Plaspy compatible deployments. Combining integrated GNSS and GSM antennas with a built-in rechargeable battery and hardened power protection, the S-2421 delivers continuous real-time tracking and robust telemetry for fleet management, anti-theft monitoring, and remote diagnostics.

Designed to integrate with platforms such as Plaspy, the SMART S-2421 provides the essential inputs, outputs, and sensor connectivity that modern GPS tracker installations require. With Bluetooth 4.0, a 1-Wire interface and configurable I/O lines, this device supports flexible vehicle telemetry — from ignition detection and immobilizer control to fuel monitoring when paired with the appropriate sensors.

Key Highlights

• Plaspy compatible GPS tracker for reliable real-time tracking and centralized fleet management.
• Integrated GLONASS/GPS and GSM antennas for simpler installation and consistent signal reception.
• Built-in 380 mAh rechargeable battery ensures operation through short power outages and supports anti-theft alerts.
• Robust automotive-grade power line protection rated up to 200 V to withstand transient voltages.
• Bluetooth 4.0 and 1-Wire interface enable connection to external sensors and BLE modules for expanded telemetry (temperature, fuel sensors, beacons).
• Three universal inputs and two configurable outputs provide flexible ignition detection and immobilizer or accessory control.
• Compatible with local and remote configuration tools (NTC Configurator and DRC remote device management) for firmware management and centralized administration.

How It Works with Plaspy

When integrated with Plaspy, the SMART S-2421 streams location and vehicle telemetry to the platform so operators can view real-time positions, create alerts, and generate reports. Plaspy reads GNSS fixes, cellular signal and power status, and the device’s input/output events to build actionable fleet insights. The S-2421’s sensor interfaces (1-Wire and Bluetooth) expand telemetry capabilities, enabling Plaspy to ingest additional data points from external modules.

• Real-time location and telemetry updates (GNSS position, time, and movement).
• Configurable event reporting for inputs and outputs — use inputs for ignition detection and outputs for immobilizer or remote control.
• Support for 1-Wire sensors and Bluetooth sensors so Plaspy can display temperature, door/movement, or fuel-sensor readings when those sensors are attached.
• Device health telemetry including battery backup status and power-line event reporting for proactive maintenance.
• Support for remote firmware updates and centralized management via manufacturer tools, enabling coordinated device maintenance alongside Plaspy fleet workflows.

Technical Overview

Use Cases

• Fleet management: real-time tracking, route monitoring, and basic telemetry reporting for midsize vehicle fleets.
• Anti-theft and immobilization: detect unauthorized movement and use configurable outputs to trigger immobilizer circuits or warnings.
• Remote diagnostics and maintenance: monitor device health and power events to reduce downtime and schedule maintenance.
• Sensor-enabled telemetry: attach 1-Wire or Bluetooth sensors to monitor fuel level, temperature, or cargo conditions and feed data into Plaspy dashboards.

Why Choose This Tracker with Plaspy

The SMART S-2421 balances reliability and flexibility for Plaspy compatible deployments. Its integrated GNSS/GSM antennas simplify installation while the internal battery and robust power protection increase uptime and resilience in vehicle environments. For operators focused on fleet management and anti-theft protection, the S-2421 supplies the core telemetry, configurable I/O and sensor connectivity needed to capture ignition events, control immobilizers, and extend telemetry through Bluetooth sensors or 1-Wire devices.

Beyond hardware, the device’s compatibility with NTC Configurator and the DRC remote device management system lets teams standardize configuration and deploy firmware updates at scale — an important complement to Plaspy’s real-time tracking, reporting and alerting capabilities. If you need a compact, Plaspy compatible GPS tracker that supports vehicle telemetry, anti-theft workflows, and external sensors, the SMART S-2421 is a practical choice backed by manufacturer documentation and centralized management tools.