The PT28 4G GPS Watch Tracker is a compact, Plaspy compatible personal GPS tracker built for dependable real-time tracking, two-way communication, and immediate emergency response. With multi-mode positioning (GPS + Beidou + Wi‑Fi + LBS) and AGPS support, the PT28 delivers accurate location updates and route history that integrate directly into Plaspy for monitoring, alerts, and reporting. Its IP67 waterproof enclosure, 1.30" IPS touchscreen, and lightweight design make it a practical choice for child safety, elderly care, and outdoor activities.
Designed around personal safety rather than vehicle telematics, the PT28 supports SOS one-key emergency calling, remote voice monitoring, two-way voice calls, heart rate and step telemetry, and up to three months of stored route history. When paired with Plaspy, the watch brings transparent, low-friction tracking to caregivers and managers — while manufacturer-provided server access eliminates monthly platform fees (users pay only SIM calling/data costs).
Key Highlights
- Plaspy compatible for integrated real-time tracking, alerts, and history reporting via the Plaspy platform.
- Multi-mode positioning (GPS + Beidou + Wi‑Fi + LBS) with AGPS for faster cold starts (≈26 s) and typical accuracy of 5–15 m.
- Built-in 2MP camera, two-way voice calls and remote voice monitoring for direct communication and situational awareness.
- IP67 waterproof housing (48 x 41 x 16.9 mm, 50 g) with a 600 mAh battery and magnetic-suction charging for reliable field use.
- Smart geo-fence alerts and up to three months of historical routes for review and incident investigation in Plaspy.
- Ultra-low power management with intelligent dormancy modes to extend battery life between charges.
- CE certified with companion apps for Android 2.3+ and iOS 5.0+; manufacturer-prepaid server service reduces ongoing platform costs.
How It Works with Plaspy
The PT28 sends position and event data over cellular networks and Wi‑Fi/LBS fallbacks to the Plaspy platform, enabling real-time tracking and configurable alerts. Plaspy ingests the device's location stream, geo-fence triggers, SOS events, and available telemetry so you can monitor movement, respond to emergencies, and analyze historical routes. Integration is straightforward: install the companion app or register the device on Plaspy and authorize data forwarding to the platform.
- Real-time location and telemetry updates (GPS/Beidou position, AGPS-assisted fixes).
- SOS one-key alerts and emergency call records available to Plaspy for immediate notification.
- Historical route export and three months of stored tracks for post-event review in Plaspy.
- Remote voice monitoring and two-way calls for live assessment; event flags for video chat and camera snapshots.
- Wi‑Fi and LBS positioning as fallbacks for indoor or weak-signal environments.
Technical Overview
| Connectivity | Single SIM slot; LTE FDD and WCDMA cellular support for overseas networks |
|---|---|
| Bands | LTE FDD & WCDMA (specific bands not listed in product description) |
| Power & Battery | 600 mAh rechargeable battery, magnetic suction charging; ultra-low power management and intelligent dormancy modes |
| Interfaces | Single multi-function button (power / SOS), 2MP camera, two-way voice call & remote voice monitoring (mic & speaker implied), G-sensor |
| GNSS & Positioning | GPS + Beidou, 22-channel GNSS reception, -165 dBm sensitivity, AGPS (cold start ≈26 s), typical accuracy 5–15 m; Wi‑Fi indoor positioning (20–100 m) and LBS (100–1000 m) |
| Storage & Memory | 256M + 512M storage (as specified) |
| Bluetooth | Not specified (Bluetooth sensors not listed in the product description) |
| Remote Management | Companion apps for Android 2.3+ and iOS 5.0+; server-side service prepaid by the manufacturer (no monthly server fee from manufacturer; SIM data/calls apply) |
| Form Factor & Durability | 48 x 41 x 16.9 mm, 50 g, IP67 waterproof |
| Operating Conditions | -20 to 70 °C; 5%–95% non-condensing humidity |
Use Cases
- Child monitoring and parental safety — location sharing, SOS alerts, and two-way calls for quick check-ins.
- Elderly care and lone-worker safety — heart rate and step telemetry plus remote voice monitoring for wellbeing checks.
- Outdoor and adventure tracking — waterproof enclosure, multi-mode positioning, and Plaspy real-time tracking for peace of mind.
- Travel and overseas use — LTE FDD/WCDMA support for international cellular connectivity (SIM data/call costs apply).
- Short-term asset or personnel tracking — light-duty field tracking where a wearable, Plaspy compatible GPS tracker is preferred to vehicle telematics.
Why Choose This Tracker with Plaspy
The PT28 pairs reliable hardware with Plaspy's platform to deliver a straightforward personal-tracking solution focused on safety and situational awareness. Its multi-mode positioning and AGPS reduce time-to-first-fix and improve real-time tracking accuracy, while built-in SOS, two-way voice, and stored route history give caregivers and managers the tools they need to respond quickly. Because the manufacturer prepays the server-side service, operating costs are simplified — you only cover SIM calling and data. Although this watch is optimized for personal and small-team tracking rather than vehicle fleet management (it does not list ignition, immobilizer, or fuel monitoring interfaces), its Plaspy compatibility and telemetry (heart rate, steps, battery status) make it an efficient choice for monitoring people, small assets, and field staff where wearable convenience matters.
Set Up PT28
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
3SFzkTiwKqDmJQEnXirMjjpBY6Xe - Set the update interval every 60 seconds
TIMER,60#
To check parameter settings PARAM#