Queclink GL520M GSM/GPS Asset TrackerQueclink GL520 GSM Tracker is a reliable and cost effective device to track assets. GSM Queclink GL520M GSM GPS Asset Tracker Features: This GSM tracker consumes a minimal amount of power giving it an impressive battery life. With GPS enabled it will send one location report every day for 736 days. With GPS disabled it will send one location every day for 1,234 days this will result in a less accurate location as it will rely on the GSM capability