The GL300 waterproof device is a powerful portable GPS locator, designed for lone workers, vehicles, pets, containers, and general asset tracking. The thumb-sized button on the front makes this device ideal for applications that require quick emergency alert notification or regular adjustment of location-based geofences. Its integrated GNSS receiver supports GPS and GLONASS systems, with high sensitivity, ensuring a fast TTFF (Time to First Fix). The GPRS/GSM system is quad-band 850/900/1800/1900 MHz, allowing the GL300's location to be periodically monitored to a real-time server or any other device via SMS. Its integrated 3-axis accelerometer allows for motion detection and long battery life through sophisticated energy-saving algorithms.