関係
3グラム/4グラムsimカード, 5グラムsimカード, 2グラムsimカード
Product name
4g smart tracker wrist track elerderly gps watch
Targeting
GPS+Beidou+WIFI+LBS Multi modal positioning
GPS channel number
22 channels
Operating temperature
-20℃ ~ +70℃
Working Humidity
5% to 95% not solidified