How do I check vehicle status via SMS?
Send an SMS command “check+password” (e.g., check123456) to the tracker device. The unit will reply with a status report indicating power, battery level, GPS condition, ACC position, door status, GSM signal quality, GPRS state, oil, APN, IP, and Port details.
From the official Gps Tracker 303fg 2 V3 4 Gps Locator manual, page 19
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