Model W21L from Guangzhou Seeworld Technology Co. Ltd is an asset GPS tracker that features a 5000 mAh battery with standby durations ranging from 1.5 to 5 years, making it suitable for long‑term asset monitoring. It supports LTE Cat M1 and NB‑IoT networks across multiple bands, along with 4G, 2G, and GPS connectivity.
Functions include satellite positioning, geofence alerts, over‑speed warnings, and track view via iOS, Android, PC, or SMS coordinates. Operating modes cover long standby, emergency, and activity, with a motion sensor enabling wake‑up on movement or by SMS command.
The unit is portable, waterproof, and antishock, with magnetic wireless placement for vehicles, cargo, and assets. The MOQ for this model is 100 units and the lead time ranges from seven to 10 days.
Guangzhou Seeworld specializes in GPS tracking solutions. It was founded in 2008 and is certified to CCC, FCC, CE and ISO 9001 standards.






