D25 Positioning Shoulder Light
Model: XW129-4G / 4G Cat.1
Red & blue warning flash
Two sets each of red and blue LEDs with switchable flash modes keep crews conspicuous in traffic and poor light.
Centimetre-level accuracy
Multi-source BeiDou, GPS, AGPS, WiFi, Bluetooth and LBS, with optional dual-frequency RTK for centimetre precision.
One-touch SOS & TTS
A single press raises an alarm to the platform, while TTS reads out the latest dispatched message.
All-shift power, IP65
An 1100 mAh battery delivers over 20 hours of reporting and at least 3 days standby in an IP65 shell.
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Product Overview
The D25 is an IP65 intelligent positioning shoulder light built for high-precision personnel management. A low-power MCU with 4G Cat.1 connectivity carries BeiDou, GPS, AGPS, Wi-Fi, Bluetooth and LBS multi-source positioning — with optional dual-frequency RTK reaching centimetre-level accuracy outdoors and Bluetooth beacon positioning indoors. Red and blue warning LEDs, one-touch SOS, TTS voice and flexible check-in keep field teams visible, safe and accountable.
Light plus location
A wearable warning light with a built-in positioning module for low-light workforces.
Track night crews
Live position and trajectory for sanitation, road and port teams working after dark.
Lone worker safety
Geo-fences, SOS alarms and platform monitoring protect people working alone.
Ключевые возможности
Характеристики
| Model | XW129-4G |
| Network | 4G Cat.1 |
| Frequency Bands | LTE-TDD B34/B38/B39/B40/B41; LTE-FDD B1/B3/B5/B8 |
| Positioning | BeiDou + GPS + AGPS + WiFi + Bluetooth + LBS |
| RTK | Single BeiDou / BDS+GPS dual-frequency RTK (optional) |
| Outdoor Accuracy | 10 cm - 10 m |
| Indoor Accuracy | Approx. 300 m (WiFi / LBS) |
| Cold Start | < 30 s |
| Positioning Frequency | 1s / 2s / 5s / 10s / 15s / 30s / 60s / 120s |
| Data Upload | Every 3 minutes by default (configurable) |
| Warning Light | 2 x 3 red + 2 x 3 blue LED, switchable modes |
| Battery | 3.8 V 1100 mAh polymer lithium |
| Working Time | >= 20 hours @ 15 s reporting |
| Standby Time | >= 3 days |
| Charging | < 3.5 hours, Type-C 5V/1A |
| Current | <= 60 mA working / <= 5 μA standby |
| Buttons | Power, Function, Flash |
| Audio | TTS playback, MIC two-way call |
| Protocols | JT808, NTRIP, private protocol |
| Wearing Method | Alligator clip |
| Dimensions | 79.9 x 39.5 x 16.5 mm |
| Weight | 68 g |
| Material | PC + ABS |
| Waterproof | IP65 (IP66 with sealed SIM slot) |
| Working Temperature | -20°C to 65°C |
| SIM Card | 1 x Nano SIM |
Application Scenarios
See how the A3 4G wired GPS tracker delivers value across industries.
Night sanitation
Keep street cleaning crews visible and locatable after dark.
Road maintenance
Protect roadside teams working beside live traffic at night.
SOS alarm
One press sends an alert with the worker's exact location.
Safe work zone
Geo-fence alerts confirm crews stay inside assigned areas.
Security patrol
Monitor guard patrols across large perimeters in real time.
Port night operations
Track dock and yard teams during overnight operations.
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