The PT55 is a compact, Green-Gps compatible GPS tracker engineered for long-term asset and personal tracking where discreet installation and multi-year standby are priorities. With a strong magnetic housing, reliable real-time GPS positioning plus LBS fallback, and multiple telemetry/alert options (UDP/SMS/web and mobile apps), the PT55 is built to integrate smoothly into Green-Gps-enabled fleet management and anti-theft workflows.
The PT55 emphasizes practical, low-maintenance tracking: large internal battery capacity, configurable reporting modes, tamper/light-trigger alarms and anti-fake-LBS protection combine to deliver dependable location, history playback and alarm delivery for trailers, containers, luggage and covert vehicle mounting. Green-Gps users get the benefit of long battery life, configurable telemetry, and standard server protocols for easy integration into real-time tracking dashboards and automated alerts.
Key Highlights
- Green-Gps compatible for real-time tracking via UDP/SMS and web/mobile platforms — ideal for fleet management and anti-theft monitoring.
- Extra-long standby life: large internal lithium battery designed for multi-year standby when using low reporting intervals (marketing standby up to three years at one report/day).
- Discreet magnetic mounting and compact form factor make covert vehicle or asset installation simple and secure.
- Reliable positioning with GPS plus LBS fallback and anti-fake-LBS protection to reduce false locations in challenging environments.
- Flexible alerting: tamper/light-trigger alarms, low-battery alerts, configurable timing and alarm modes for event-driven telemetry.
- Remote configuration and management via message-based settings (IP/port, APN, device number, alarm parameters), supporting large deployments without physical recall.
- Historical track query (up to 30 days) for playback and incident investigation in Green-Gps dashboards.
How It Works with Green-Gps
Integrating the PT55 with Green-Gps delivers real-time location, telemetry and event alerts to Green-Gps dashboards and mobile apps. The PT55 can send position updates and alarms via UDP to custom servers or via SMS for environments where data connectivity is intermittent. Green-Gps ingests UDP and SMS payloads, decodes GNSS and LBS data, and presents location, history and alert feeds for fleet management, anti-theft response and operational reporting.
- Real-time location and telemetry updates sent over GPRS (UDP) or SMS for Green-Gps processing and display.
- LBS fallback ensures continued location reporting where GNSS is obstructed; anti-fake-LBS protection helps avoid spoofed cells.
- Tamper/light-triggered alarms and low-battery alerts are forwarded to Green-Gps for immediate notification and automated workflows.
- Configurable reporting modes (timing, alarm, timer, week modes) allow Green-Gps users to tune update frequency for power vs. resolution trade-offs.
- Historical track query (up to 30 days stored on the device) supports incident reconstruction and location history in Green-Gps.
Technical Overview
| Connectivity | GSM/GPRS (GPRS class 12, up to 85.6 kbps) |
|---|---|
| Bands | GSM 850 / 900 / 1800 / 1900 MHz |
| GNSS Chipset | MT2503D (GNSS + GSM functions) |
| GNSS Performance | Acquisition sensitivity ≈ -148 dBm; Tracking ≈ -165 dBm; Reacquisition ≈ -160 dBm; 22 tracking / 66 acquisition channels; Typical position accuracy < 10 m CEP; TTFF (open sky) cold <40 s, warm <30 s, hot <5 s, reacquisition <1 s |
| Power & Battery | Power supply DC 3.0 V (internal battery). Spec table lists 4000 mAh (Panasonic CR123A * 3); marketing materials reference up to 5000 mAh—either way the device uses a large-capacity polymer lithium cell designed for multi-year standby at low reporting rates. Typical consumption ≈ 80 mA/h; rated up to three years standby at one position report per day (configuration-dependent). |
| Power Features | Low battery alarm, long standby optimized reporting modes |
| Interfaces | Internal cellular and GNSS antennas, LED indicators (CEL, GNSS). Message-based remote configuration (IP/port, APN, device number, alarm settings). |
| Protocols | UDP transmission to custom servers, SMS location queries and alarms |
| Form Factor & Mounting | Compact: 77 x 41 x 27 mm; weight ~100 g; strong magnetic mounting for vehicle/asset attachment |
| Environmental | Operating temperature -20° to 75° C; humidity tolerance 5%–90% non-condensing |
| Storage & History | Historical track query available (up to 30 days) |
| Special Features | Anti-fake-LBS protection, tamper/light-triggered alarm, scheduled reporting modes |
Use Cases
- Long-term covert tracking of trailers and shipping containers — minimal maintenance and multi-year standby reduce retrieval frequency.
- Asset protection for high-value goods and baggage — magnetic mounting and tamper/light alarms provide discreet anti-theft alerts to Green-Gps.
- Fleet management for intermittently used equipment — configurable timing and week modes let managers balance reporting granularity and battery life.
- Historical route reconstruction and incident investigation — up to 30 days of on-device track history supports playback in Green-Gps.
- Remote deployments where cellular coverage is variable — GPS with LBS fallback and SMS/UDP transport keep Green-Gps informed even in degraded conditions.
Why Choose This Tracker with Green-Gps
The PT55 is a focused solution for organizations and individuals who need reliable, low-maintenance GPS tracking that integrates with Green-Gps for fleet management, anti-theft response and telemetry workflows. Its large internal battery and configurable reporting modes minimize operational overhead, while UDP/SMS transport and message-based remote configuration simplify large deployments. Anti-fake-LBS protection, tamper/light-trigger alarms and historical track playback give Green-Gps users stronger assurance of correct location data and faster response to suspicious events.
For teams managing diverse assets, the PT55 serves as a dependable Green-Gps compatible tracker: it delivers real-time tracking, telemetry and alarms without frequent battery swaps, supports discreet magnetic mounting for covert installations, and provides the fundamental connectivity and reporting options needed to integrate into existing Green-Gps fleet management, anti-theft and telemetry-driven processes — including downstream workflows such as fuel monitoring or ignition/immobilizer control when used alongside compatible external sensors or gateways.
Set Up PT55
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#
or
PW9eNbtklrLl6jwAwwpGnR0xWRp9 - Set the update interval every 60 seconds
TIMER,60#
To check parameter settings PARAM#