V51 B Style IP67 Waterproof 4G LTE 3G 2G GSM Elderly SOS Button Emergency Alarm GPS Tracker For North America/South America

Feature
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 of exercise, calorie consumption and exercise journey.
5. Call: SOS 2 Voice Call / Voice Monitoring: Request tracker to dial SOS number for voice monitoring
6. Command setting: make relevant settings for the positioner, for example:
SOS number setting
Phonebook to enter the number to call
fall alarm
alarm clock reminder
Ringtone Finder Locator
reject calls from strangers
7. Message list: Displays all alarm lists of the locator, including offline, low battery and entry and exit of the electronic fence, etc.
8. Reminder settings: Open all to receive an alarm push. Please be sure to enable the relevant push permissions in the app permissions of your phone

Parameter
1. Battery capacity: 1000mAh
2. Average standby current: 4mA/h
3. Average operating current: 8mA/h (positioning once every ten minutes)
4. Working temperature: -20~70 degrees Celsius
5. Working humidity: 5% to 95% non-solidifying
6. Waterproof grade: IP67
7. Frequency band:
- FDD frequency band: Band 2/4/5/7/12/28A
- GSM frequency band: Band 2/3/5/8

Function
GPS:
1. Chip model: TD1030
2. GPS signal: L1, 1575.42MHz C/A code
3. Number of GPS channels: 22 channels
4. GPS chip receiving sensitivity: -165dBm, capture: -148dBm
5. GPS positioning accuracy: 5-15m
6. GPS Antenna: Ceramic Antenna
7. AGPS: Support
8. AGPS fast positioning time: 26 seconds for cold start
LBS positioning accuracy: 100-1000M (based on AMAP database)
WIFI: only support RX
WiFi chip model: built-in
WiFi standard: 802.11b\802.11g\802.11n
WiFi positioning accuracy: 5-50M (according to AutoNavi or Google data)