Hardware & PCB design
PCB, enclosure, connectors, antenna and power design are reviewed against the installation and operating requirements.

A high-capacity magnetic GPS tracker designed for vehicles, trailers and mobile assets. Its powerful built-in magnet enables fast, wiring-free installation, while real-time tracking, route playback, geo-fence alerts and up to 50 days of standby provide reliable long-term monitoring.
Final pricing depends on configuration, quantity, taxes and shipping.
Sample availability, quantity and lead time depend on the selected model. Confirm the pilot scope before placing a production order.
The Long Battery Life Magnetic GPS Tracker is a portable location-monitoring device designed for vehicles, trailers, containers, construction equipment and other valuable mobile assets. It combines satellite positioning, cellular communication and a high-capacity rechargeable battery in a compact, concealed enclosure.
A powerful built-in magnet allows the tracker to be attached directly to a suitable metal surface without drilling, wiring or permanent installation. With configurable tracking modes and up to 50 days of standby time, the device is suitable for temporary tracking and long-term asset monitoring.
The integrated magnet enables fast installation on cars, trucks, trailers, machinery and metal equipment. No vehicle wiring or external mounting bracket is required.
The tracker can be moved between vehicles or assets whenever necessary, making it suitable for rental fleets, logistics companies, construction equipment and temporary monitoring projects.
For stable installation, attach the device to a clean, flat metal surface and confirm that it cannot fall because of vibration, impact or road conditions.
The built-in high-capacity rechargeable battery supports extended operation without connection to the vehicle’s electrical system. Standby time can reach up to 50 days under suitable operating conditions.
Actual battery life depends on the positioning interval, network signal, satellite availability, temperature, movement frequency and selected working mode. More frequent real-time reporting will consume more battery power.
The tracker collects satellite location data and sends it to the cloud platform through a compatible cellular network. Users can check the device’s current position, movement direction, speed, positioning time and online status.
The reporting interval can be adjusted to balance tracking frequency, mobile-data consumption and battery life.
When the tracked vehicle or asset remains stationary, the device can enter a low-power sleep state. Movement or vibration can wake the tracker and restore location reporting.
This power-management strategy reduces unnecessary energy consumption during long periods of parking or storage.
The mobile app and web platform store historical location records. Authorized users can review previous travel routes, stop locations, movement times and location events.
Route playback is useful for verifying vehicle journeys, investigating unauthorized movement and reviewing logistics operations.
Users can create virtual geographic boundaries around parking areas, warehouses, construction sites, cities or approved operating zones.
When the vehicle or asset enters or leaves a configured area, the platform can generate a geo-fence notification. This helps users identify unauthorized use or unexpected movement.
The integrated motion sensor can detect vibration or movement while the tracker is armed or in sleep mode. When abnormal activity is detected, the device can wake up and report the event to the platform.
This feature provides an additional layer of protection for parked vehicles, trailers and stored equipment.
The platform can display the tracker’s battery status and generate a low-battery alert when charging is required. This allows users to schedule maintenance before the device powers off.
The product supports Android and iOS mobile applications as well as a browser-based tracking platform. Users can monitor individual devices or manage multiple vehicles and assets from one account.
Platform functions can include real-time location, route playback, geo-fence management, alarm records, device status and battery monitoring.
This magnetic GPS tracker can be used for vehicle anti-theft protection, rental fleet monitoring, trailer tracking, logistics asset management, construction machinery monitoring, vehicle finance control and temporary equipment tracking.
Its installation-free design is particularly useful when permanent wiring or modification of the vehicle is not permitted.
Shenzhen Jinshengchang Technology Co., Ltd. provides OEM and ODM customization for magnetic GPS tracking products.
Available services include:
CUSTOM PRODUCT LOGO
CUSTOM PACKAGING
BATTERY CAPACITY CUSTOMIZATION
FIRMWARE DEVELOPMENT
COMMUNICATION PROTOCOL INTEGRATION
LOCATION REPORTING LOGIC CUSTOMIZATION
ANDROID AND IOS APP CUSTOMIZATION
WEB PLATFORM CUSTOMIZATION
MULTILINGUAL SOFTWARE
API INTEGRATION
PRIVATE SERVER DEPLOYMENT
The product is suitable for GPS distributors, vehicle-security companies, fleet operators, logistics businesses and tracking-system integrators.
Reference configurations are shown below. Final specifications are confirmed in the approved product specification.
| Positioning Mode | GSM |
|---|---|
| Battery Life | Less Than 12 Hours |
| Application | Motorcycles, Bicycles, Automobiles, Handheld Use, and Other Applications |
| Functions | Waterproof, Street View, Overspeed Alert, Historical Route Playback, and Geofencing |
| Network | GSM, GPRS, 2G GSM, 4G LTE, and Wi-Fi |
| Communication | Cellular Network |
| Installation Location | Dashboard, Portable Placement, or Vehicle Roof |
| Mounting Method | Magnetic Mounting |
| Power Supply | Battery Powered |
| Battery | 20000mAh Rechargeable Battery |
| Data Storage | Cloud Storage |
| Tracking Display | PC Platform, iOS App, Android App, and SMS Coordinates |
| GPS Features | Remote Control, Real-Time Location Tracking, Historical Route Playback, Geofencing, and Vibration Alarm |
| Product Type | Magnetic GPS Tracker |
| Viewing Angle | 360° Bird’s-Eye View |
| Button Cell Battery | No |
| Connectivity | 3G/4G SIM Card |
| Warranty | 1 Year |
| Compatible Vehicles | Cars, Bicycles, Motorcycles, Boats, Trains, and Buses |
| Place of Origin | Guangdong, China |
| Brand Name | Tacstar |
| Model Number | GT91 |
| Battery Capacity | 20000mAh |
| Product Dimensions | 121 × 65 × 48mm |
FULLY CHARGE THE TRACKER BEFORE FIRST USE
INSERT AND ACTIVATE A COMPATIBLE SIM CARD
POWER ON THE GPS TRACKER
ADD THE DEVICE ID TO THE MOBILE APP OR WEB PLATFORM
CONFIGURE THE APN AND SERVER ADDRESS IF REQUIRED
SET THE LOCATION REPORTING INTERVAL
CONFIGURE SLEEP MODE ACCORDING TO THE PROJECT REQUIREMENTS
CREATE THE REQUIRED GEO-FENCE AREAS
SELECT A CONCEALED METAL INSTALLATION LOCATION
KEEP THE GPS ANTENNA SIDE FACING UPWARD
CLEAN THE METAL SURFACE BEFORE INSTALLATION
ATTACH THE TRACKER FIRMLY USING THE BUILT-IN MAGNET
AVOID INSTALLATION UNDER THICK OR MULTILAYER METAL
CHECK GPS POSITIONING AND NETWORK COMMUNICATION
TEST MOVEMENT, GEO-FENCE AND LOW-BATTERY ALERTS
RECHARGE THE DEVICE WHEN A LOW-BATTERY ALERT IS RECEIVED
Define the application, country, quantity, reporting interval and target battery life.
Agree the device, network, power system, payload and platform interfaces.
Test representative devices, coverage, power consumption and alarm delivery on site.
Approve the specification and pilot results, then plan production, installation and support.
PCB, enclosure, connectors, antenna and power design are reviewed against the installation and operating requirements.
Reporting intervals, event logic, payload encoding and remote configuration are defined in a versioned interface document.
Device registration, maps, history, alarms and customer APIs are scoped together with access permissions and data handling.
Logo, enclosure color, labels, packaging and white-label interfaces can be assessed for the selected product and order quantity.
Sample availability, quantity and lead time depend on the selected model. Confirm the pilot scope before placing a production order.
Logo, packaging, firmware, payloads and API integration can be assessed within the agreed OEM / ODM scope.
Reporting interval, installation, radio conditions and temperature affect results. Confirm the operating profile and validate it during the pilot.
Share the country, device quantity, application, network, power target and platform requirements. Include drawings or interface documents when available.