Regarding the current positioning products, there are no more than two types of positioning, gps positioning and Beidou positioning, both positioning forms have advantages, positioning accuracy is not far apart, at present, due to the small number of visible satellites in Beidou, satellite distribution is poor, positioning accuracy is poor or unable to locate. However, many products on the market are dual-mode positioning methods that support gps positioning and Beidou positioning, so this does not have to be considered too much. As for the communication module, the product can accept the signal to be strong, otherwise it is always impossible to find the signal.

When purchasing a gps tracker with temperature sensor, we must first know what fundamental functions the product should have:

(1) Global satellite positioning. Equipped with mobile phone cartoon can be positioned, omnidirectional positioning tracking without dead corners, regardless of area, regardless of time, time positioning tracking, its multiple sets of map proofreading errors, simple and easy to use.

(2) Track replay query. The owner can select the last 120 days of the track, playback process can show the speed, direction, residence time, etc., playback smooth and intuitive.

(3) Equipped with Android/Apple mobile client. Just download the client device to the mobile phone, you can query the vehicle orientation in real time, replay the track, real-time tracking, support satellite map browsing, and make map browsing more realistic.

(4) Advanced positioning chip, positioning system chip is the core component, the advantages of advanced chip is fast, sensitive, power saving, actually indicated, from power to complete positioning only about 30 seconds. General defective products will use cheap defective chips, which are often inaccurate in positioning, and the error is too large.

(5) Intelligent electronic fence with memory, intelligent active fortification can be SMS tips. After the vehicle enters the fence scale, it will take the initiative to enter the fortification state, and after the vehicle comes out of the fence, the owner's mobile phone will receive an alarm message prompt, which does not need to be set repeatedly and is permanently effective.

gps tracker with temperature sensor https://www.eelinktracker.com/cold-chain-temperature-monitoring-devices.html