SOS

SOS cable works with GPS tracker. Pre-set the manager cellphone numbers to the tracker.
Press SOS button over 3 seconds to trigger SOS alerts when emergency happened. SOS alerts notification will be immediately sent to keelin GPS tracking system, Meanwhile send a SMS message to the manager cellphone number.

Specifications

HOW Used for emergencies, trigger SOS alerts
Device TK419-3,TK419,TK418
Gpio PIN7 PIN8