GF09 is a dual positioning system with LBS+WIFI, very cost-effective for general daily use, if you need higher precision, please check other models, recommend GF22. Battery capacity is 300mah, endurance 3-4 days. Weight: 100 grams Size: 26*42*15 mm Strong magnetic adsorption with SOS button, it is the best choice for your home security system!
You must have at least 2G network to use it. USA (for T-Mobile), please consult your local carrier in detail if it supports 2G network or use a 2G IOT card. Below are the countries where it can not be used, but it can be used in some environments, please read carefully: Countries where 2G networks are not available: Singapore, Japan, Korea, Australia, New Zealand, Canada, Taiwan (for APT)
