V51 B Style IP67 Waterproof 4G LTE 3G 2G GSM Elderly SOS Button Emergency Alarm GPS Tracker For North America/South America, V51 B Style Option:V51 B Style Carton Size 40cm * 39cm

Carton Size 40cm * 39cm * 46cm / 15

Cloud Services: Automatic/OTA Firmware Upgrade

Function:Passometer

5mm AUX+RCA+FM+USB+TF interface+6

Microsoft 1798 computer adapter

V51 B Style IP67 Waterproof 4G LTE 3G 2G GSM Elderly SOS Button Emergency Alarm GPS Tracker For North America/South America, V51 B Style Option:V51 B Style Carton Size 40cm * 39cmFeature 1. Real time positioning: query position information and adjust positioning interval, and navigate to find personnel. 2. Historical track: View the movement track of any day within 90 days 3. Fence: GPS fence: Compare the GPS positioning data and judge whether there is an alarm for entering or leaving the fence. WIFI fence: Compare the WIFI hotspots and judge whether there is an alarm in or out of the fence. " 4. Health: Calculate the amount