Model NO: GPT50

GPT50: Ultra-Long Standby GPS Tracker for Assets & Cargo

Up to 10‑year standby (with daily updates)

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GPT50 recessed under a Euro pallet, IPX7 long-standby GPS tracker

The GPT50 is an ultra‑long GPS tracking device engineered for years‑long in‑transit monitoring of assets, vehicles and cargo. Powered by a massive 24 000 mAh battery and power‑efficient electronics, it offers up to 10‑year standby with once‑daily reports. GPT50 leverages multi‑constellation GNSS (GPS, GLONASS, BeiDou and Galileo) and communicates via LTE Cat‑1 with 2G fallback for global coverage. Weighing approximately 350 g (±10 g), it is IPX7 waterproof, operates from −20 °C to +60 °C and is ideal for long‑term deployment on trailers, containers and other valuable assets requiring reliable, real‑time visibility and security.

Why GPT50 is Built for Pallets

Here are the reasons why the GPT50 is in a league of its own for asset tracking:

Recess-Mount Design

The GPT50 is engineered specifically for pallet pools – its recessed housing sits flush under Euro and CHEP pallets, fixed securely with four M4 screws. This hidden, impact‑resistant design meets ISO 17366 requirements and protects the tracker from damage or casual theft.

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Ultra‑Long Standby

Delivers up to 10‑year standby on a single 24 000 mAh battery with once‑daily reporting, eliminating the need for frequent charging or battery changes. Deploy and track for a decade.

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On-Demand Real-Time Tracking

Switch to Emergency Mode for live tracking. Remotely awaken via SMS or command to provide real-time location updates for asset recovery.

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Global GNSS & Connectivity

Multi-constellation GNSS (GPS, GLONASS, BeiDou, Galileo) for precise positioning and 4G LTE Cat-1 with 2G fallback for worldwide coverage.

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Built-in Temperature Monitoring

Integrated temperature sensor monitors environmental conditions from -20°C to +65°C with configurable high/low temperature alarms for cargo protection.

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Tamper & Movement Alerts

Built-in light sensor detects opening, 3-axis motion sensor monitors movement. Immediate notifications for unauthorized activity.

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Industrial Durability

IPX7 waterproof rating, operates in extreme temperatures from -20°C to 60°C. Built for harsh environments.

Flexible Tracking Modes for Any Situation

GPT50's dual working modes adapt to your operational needs:

Tracking Modes Diagram

GPT50 Standby / Emergency switching diagram

Long Standby Mode

Default mode where the device wakes on schedule (e.g., once per day) to report location and returns to sleep. Power consumption is minimized – achieving multi-year battery lifespan. Still wakes instantly for critical events (motion or light) to send alarms.

Emergency Live-Tracking Mode

When continuous updates are needed – for stolen or lost assets – remotely switch to Emergency mode via SMS, app, or server. Reports in real-time for a defined period, then automatically reverts to preserve battery life.

Application Scenarios (Market Application)

The GPT50 excels in a variety of industrial and logistics applications. Key use cases include:

Asset tracking

Asset Tracking

Monitor high-value assets and equipment in the field over years, ensuring their security and location visibility at all times.

Cargo and container monitoring

Cargo & Container Monitoring

Track shipping containers and cargo shipments across long supply chains. Perfect for multi-month ocean voyages or remote storage.

Trailer and vehicle tracking

Trailer & Vehicle Tracking

Secure and trace trailers, trucks, and vehicles – especially those that remain idle for long periods. Movement alerts help prevent theft.

Pallet and package monitoring

Pallet & Package Monitoring

Attach to pallets or large packages for end-to-end logistics visibility. Continue reporting location even during extended routes.

Key Features

Core features and specifications at a glance:

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Multi-Constellation GNSS

Supports GPS, GLONASS, BeiDou, Galileo for highly accurate positioning worldwide.

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4G LTE Connectivity

LTE Cat-1 networks with multi-band global support. Automatic 2G GSM fallback for areas without 4G coverage.

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Built-in Wi-Fi Module

2.4GHz Wi-Fi scanning provides auxiliary location data and connectivity for configuration updates.

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Ultra‑High Capacity Battery

The 24 000 mAh lithium‑manganese battery powers the device for up to 10‑year standby with once‑daily updates. Truly wireless deployment for a decade of peace of mind.

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Intelligent Motion Sensor

3-axis accelerometer for motion, vibration, and tilt detection. Enables movement alerts and geo-fence alarms.

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Light Sensor (Tamper Detection)

Senses light changes when containers or device casings are opened. Anti-tamper mechanism for cargo protection.

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Built-in Temperature Sensor

Monitors environmental temperature from -20°C to +65°C with configurable high/low temperature alarms for cold chain compliance.

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Rugged & Waterproof

IPX7 water resistance, dustproof sealed enclosure. Operational from -20°C to +60°C for extreme environments.

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One-Button Activation

Simple power-on design. Ships in "off" state, activated when deployed. No complex installation required.

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Remote Config & OTA Updates

Remote configuration of reporting intervals and firmware upgrades over-the-air via platform or SMS.

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Platform Integration

Compatible with Eelink's Keelin platform and third-party systems via API/protocol (TCP/UDP support).

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No Monthly Fee

No subscription fees. Use your own SIM card and platform. Complete control over operational costs.

Product Infographic

Visual summary of key features and use cases

Networks & Connectivity

Engineered to work anywhere your assets go:

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4G LTE Cat-1

Multi-band support for worldwide coverage. FDD/TDD LTE bands for global compatibility.

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2G GSM Fallback

Quad-band 2G (850/900/1800/1900 MHz) ensures coverage in regions without 4G.

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Wi-Fi Enabled

2.4 GHz Wi-Fi for indoor positioning and hotspot connectivity in warehouses.

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Communication Protocols

TCP/UDP data communication with server platforms. SMS commands for configuration.

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SIM Card Support

Standard Micro SIM slot. Network-unlocked to work with various global carriers.

Technical Specifications

📡 Cellular / Network

  • LTE4G LTE Cat-1, FDD-LTE B1/B3/B5/B7/B8/B20/B28, TDD-LTE B38/B39/B40/B41
  • GSM Fallback2G GSM/GPRS 850/900/1800/1900 MHz
  • Wi-Fi2.4GHz IEEE 802.11 b/g/n
  • SIM CardMicro SIM (3FF), 1.8V/3V
  • ProtocolsTCP/UDP, HTTP/HTTPS, SMS
  • AntennaInternal cellular + GNSS antennas

🛰️ Positioning & Accuracy

  • GNSS SystemsGPS L1, GLONASS L1, BeiDou B1, Galileo E1
  • Tracking Sensitivity-165 dBm
  • Acquisition Sensitivity-148 dBm
  • Position Accuracy2.5m CEP (open sky conditions)
  • LBS Accuracy100-1000m (depending on cell tower density)
  • Cold Start TTFF< 35 seconds (typical)
  • Hot Start TTFF< 5 seconds

⚠️ Sensors & Monitoring

  • Accelerometer3-axis digital accelerometer, ±2g/±4g/±8g/±16g
  • Motion DetectionConfigurable sensitivity, vibration analysis
  • Light SensorAmbient light detection for tamper alerts
  • Temperature SensorBuilt-in temperature monitoring (-20°C ~ +65°C, high/low alarm)
  • GeofencingCircular and polygon geofences
  • Alert TypesMotion, Tamper, Temperature, Low battery, Geofence, Power loss
  • LED IndicatorStatus indication (power, network, GPS)

🔋 Power Management

  • Battery TypeLithium Manganese Dioxide (Li-MnO₂)
  • Battery Capacity24,000 mAh (non-rechargeable)
  • Standby LifeUp to 10 years (1 report/day mode)
  • Sleep Current< 15 µA (deep sleep mode)
  • Tracking Current~150 mA (GPS + cellular active)
  • External PowerNot supported (battery only)
  • Battery MonitoringReal-time voltage monitoring with alerts

🌡️ Environmental & Physical

  • Operating Temperature-20°C to +60°C (-4°F to +140°F)
  • Storage Temperature-30°C to +70°C (-22°F to +158°F)
  • Humidity Range15% to 85% RH (non-condensing)
  • Water ResistanceIPX7 (submersion up to 1m for 30 minutes)
  • Shock ResistanceIK08 impact protection
  • Vibration10-55Hz, 1.5mm amplitude

📏 Physical Specifications

  • Dimensions130 × 103 × 30 mm (5.12" × 4.06" × 1.18")
  • Weight350g ± 10g (12.35 oz)
  • Housing MaterialIndustrial-grade ABS plastic, UV resistant
  • ColorBlack (standard), custom colors available
  • MountingMagnetic mount, adhesive mount, screw mount
  • User InterfaceSingle power button, LED status indicator

Certifications & Compliance

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FCC Certified

US Federal Communications Commission approval for cellular and Wi-Fi

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CE Certified

European Conformity marking with RoHS compliance

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IC Certified

Industry Canada certification for wireless devices

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PTCRB

Cellular certification program compliance obtained

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Air Transport

UN3090 compliant for air cargo shipment

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1-Year Warranty

Comprehensive manufacturer warranty coverage

GPT50 vs. GPT29 – Detailed Product Comparison

Eelink's GPT series includes both the GPT50 and the earlier GPT29 tracker. While they share some capabilities, they are optimized for different use cases. GPT29 is known as the "smartest in-transit monitoring device" with a rich sensor set for real-time shipment monitoring, whereas GPT50 is focused on ultra-long battery life for asset tracking.

GPT50 vs GPT29 comparison
Feature GPT50 – Long Standby Tracker GPT29 – In-Transit Monitor
🔋 Battery & Power 24,000 mAh Li-MnO₂ (Primary cell, non-rechargeable)
✅ Provides up to 10‑year standby
No recharging needed; replace device after battery is expended.
4,200 mAh Li-Ion (Rechargeable)
Provides weeks to months of operation on battery (depending on reporting rate)
Can be recharged or powered by an external source for continuous use.
📡 Reporting Frequency Optimized for low-frequency reporting:
✅ Typically 1 report per day in normal use (configurable)
Has a special Emergency Mode for temporary real-time tracking
Best for assets where constant updates aren't needed until an event occurs.
Optimized for real-time monitoring:
Supports frequent updates (configurable 1 min to 24 hr reporting)
Typically used to stream condition data continuously during shipments
Ideal for live monitoring of shipments in motion.
🔍 Sensors & Monitoring Motion, Light & Temperature sensors for movement, tamper alerts and environmental monitoring
✅ Built-in Temperature Sensor (–20 ℃ ~ +65 ℃, high/low alarm)
Focuses on security (detecting unauthorized movement or opening) and basic environmental monitoring.
Comprehensive sensors:
✅ Motion, Light, Temperature, Humidity, Shock/Vibration sensors
Monitors environmental conditions of cargo (e.g., cold chain monitoring) in addition to location.
📶 Connectivity LTE Cat-1 with 2G fallback
❌ No Bluetooth (to save power)
✅ Built-in Wi-Fi for location assist
Designed for periodic upload of data.
LTE Cat-M1 (LTE-M) and NB-IoT with 2G fallback
✅ Bluetooth 5.0 (BLE) for connecting with wireless sensors or tags
Also has Wi-Fi for location
Designed for continuous data streaming when needed.
🎯 Use Case Focus Long-term asset tracking
✅ Long-haul containers, trailers parked for long periods, unpowered equipment, theft recovery device hidden in assets
Excellent when maintenance access is limited and long battery life is crucial.
In-transit shipment monitoring
✅ Perishable goods, sensitive cargo that needs condition monitoring in real-time
Great for supply chain visibility with rich data (temperature, etc.), where shipments are shorter term and devices can be recharged between uses.
📏 Size & Weight Larger and heavier: ~350 g
Dimensions ~120×69×19.5 mm
Due to the massive battery. Still compact for its capacity, but about 3× the weight of GPT29.
Smaller and lighter: ~110 g
Dimensions ~95×58×24.5 mm
✅ Easy to attach to packages or pallets; pocket-sized.
💧 Water/Dust Rating IPX7 – Waterproof and dustproof
Suitable for outdoor long-term exposure.
IP67 – Also highly water/dust resistant
Suitable for rugged use (very similar protection level, slight differences in test specifics).
♻️ Device Lifetime Single-use device (no charging)
✅ Replace after battery is drained (up to 10‑year standby). Minimal upkeep.
Reusable device
✅ Recharge and redeploy for each new shipment
Requires charging or external power for continuous use, but can be used indefinitely with proper power management.

Documents & Downloads

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Product Introduction

Comprehensive overview of GPT50 features, design and use cases

Download PPT
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User Manual

Installation, configuration and operation guide

Download PDF
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Product Infographic

Visual summary of key features and application cases

Download JPG
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Certificates

Compliance certificates and technical documents

Request Files

Frequently Asked Questions

How long can GPT50 track a pallet without maintenance?
Up to ten years at one GPS ping per day, powered by a sealed 24 000 mAh Li‑MnO₂ battery. This unparalleled battery life means you can attach GPT50 to a pallet and forget about it for an entire supply‑chain cycle.
Will GPT50 survive rain or cold‑chain wash‑downs?
Yes. GPT50 is IPX7 waterproof and operates from –20 °C to +60 °C, meaning it can withstand cold‑chain wash‑downs, rainy conditions and extreme temperatures during transit.
How is GPT50 fixed to a pallet?
The tracker recess‑mounts beneath the pallet deck using four M4 screws. Its housing sits flush and hidden, protecting it from impacts and preventing casual theft.

Ready to Track Your Assets for Years?

Interested in the GPT50 or our other asset tracking solutions? Reach out to us for more information.