The LL309 is a compact, Plaspy compatible GPS tracker engineered for refrigerated cargo, parcel delivery and sensitive asset protection where continuous environmental monitoring matters. Combining multi-source positioning (GPS + BDS + LBS) with a built-in temperature and humidity sensor, the LL309 delivers precise location and environmental telemetry over LTE Cat.1 for reliable real-time tracking and alerting across cold chain and high-value logistics.
The device is optimized for harsh logistics environments: IP67 protection, internal GNSS and Bluetooth antennas, multi-mode power management and robust data retention for offline periods. Plaspy integration lets operations teams ingest location, temperature/humidity, tamper and battery status into fleet management dashboards and anti-theft workflows, while local BLE configuration and Type‑C export simplify deployment and post-trip analysis.
Key Highlights
- Plaspy compatible GPS tracker that delivers real-time tracking and environmental telemetry for cold chain and parcel logistics.
- Built-in temperature and humidity sensor provides continuous condition monitoring and exception alerts to protect perishable goods.
- LTE Cat.1 cellular uplink for timely data transmission; caches up to 20,000 records when coverage is unavailable and exports via Type‑C USB.
- Rugged IP67 enclosure and wide operating temperature range (–20°C to +70°C) suitable for refrigerated cargo and outdoor assets.
- Low-power 2,500 mAh Li‑Po battery with up to 30 days life at 1 update/hour and multiple power modes (Timing, Intelligent, Power‑saving).
- Local BLE 5.1 configuration and internal antennas reduce installation complexity and speed integration with Plaspy.
- Multi-alarm capability: temperature/humidity exceptions, tamper (light sensor), vibration alert and low battery notifications for immediate action.
How It Works with Plaspy
When deployed, the LL309 streams location and environmental telemetry to Plaspy over LTE Cat.1 for real-time tracking and automated alerts. Plaspy receives GNSS-derived coordinates and sensor readings and applies configurable rule sets and notifications for fleet management, cold chain monitoring and anti-theft responses. If cellular coverage is interrupted, the LL309 caches readings locally and either uploads them automatically when connectivity returns or allows bulk export via the Type‑C interface for forensic analysis.
- Real-time location and telemetry updates to Plaspy via LTE Cat.1 for continuous visibility.
- Temperature and humidity exception alerts forwarded instantly to Plaspy rules and notification channels.
- Tamper (light sensor), vibration and low battery status sent as events for anti-theft and maintenance workflows.
- Offline caching of up to 20,000 records plus 5,000 GPS buffer entries; bulk export via Type‑C for post-trip data recovery and compliance reporting.
- BLE 5.1 local configuration using Jimi IoT Lab app, Tracksolid Pro, SMS or PC tools for quick commissioning with Plaspy integration settings.
Technical Overview
| Positioning | GPS, BDS, LBS; accuracy <2.5 m CEP; tracking sensitivity –148 dBm; acquisition sensitivity –168 dBm; TTFF hot start ~1 s, cold start ≤32 s |
|---|---|
| Cellular Connectivity | LTE Cat.1 (FDD bands B2/B4/B5/B7/B12/B14/B17/B25/B26/B66; TDD B41) |
| Power & Battery | Rechargeable 2500 mAh Li‑Po battery; up to 30 days at 1 update/hour; Timing, Intelligent and Power‑saving modes |
| Memory & Storage | Up to 20,000 exportable data entries; 5,000 GPS buffer entries for no-signal caching |
| Interfaces & Sensors | Type‑C USB, Nano‑SIM slot, internal GNSS & Bluetooth antennas, light sensor, built-in temperature & humidity sensor, BLE 5.1 for local configuration |
| GNSS Performance | Multi-source positioning (GPS + BDS + LBS), high sensitivity tracking and fast TTFF for reliable location in logistics environments |
| Bluetooth | BLE 5.1 for local configuration (Jimi IoT Lab app) and potential Bluetooth sensor integration |
| Indicators | LED status: GNSS (Blue), Battery (White), Cellular (Green) |
| Mechanical & Environmental | Dimensions 100 × 60 × 15 mm; weight 108 g; operating temperature –20°C to +70°C; operating humidity 0–100%; IP67 rated |
Use Cases
- Cold chain freight protection: continuous temperature and humidity telemetry with Plaspy alerts for excursions during transit.
- Perishable goods delivery: parcel-level environmental monitoring for food, pharmaceuticals and biologics.
- High-value asset tracking: location, tamper and vibration alerts feed Plaspy anti-theft workflows for rapid response.
- Intermittent-coverage logistics: reliable data retention and Type‑C export for compliance and traceability when connectivity is restored.
- Last-mile and multi-modal shipments: compact form factor for easy placement inside packages, containers or refrigerated compartments.
Why Choose This Tracker with Plaspy
The LL309 is a purpose-built Plaspy compatible GPS tracker for logistics teams that need both location and environmental telemetry in one compact unit. Its LTE Cat.1 uplink supports real-time tracking while robust offline caching and Type‑C export maintain data continuity for audits and analysis. With IP67 ruggedness, internal antennas and BLE 5.1 for simple local configuration, the LL309 minimizes installation friction and keeps sensitive cargo visible and protected. Integrated alarms—temperature/humidity exceptions, tamper, vibration and low battery—enable actionable Plaspy alerts that improve cold chain compliance and anti-theft response.
While the LL309 focuses on environmental telemetry, Plaspy’s platform also supports broader fleet management features such as ignition-based workflows, fuel monitoring and immobilizer control when combined with vehicle-grade trackers. For operations that require continuous condition monitoring alongside precise GPS tracking and dependable data retention, the LL309 offers a focused, reliable option to integrate into your Plaspy fleet management and anti‑theft ecosystem.
Set Up LL309
To set the tracker send the following commands by SMS messages
- Reset factory settings
FACTORY# - Set the time zone UTC-0
GMT,E,0# - Set the operator APN
APN,{{apn}},{{apnu}},{{apnp}}# - Set the GPRS server
SERVER,1,d.plaspy.com,8888,0#
or
lYTfQFfoEKjII39x6csVuNZo8zJlkH - Set the update interval every 60 seconds
TIMER,60#
or
LcD5PIrlqaOG - Enable GPRS mode
GPRSON,1#
To check parameter settings GPRSSET#