Double electronic GPS system GPS global positioning system, GPS positioning Double electronics company specialized manufacturer of electronic GPS positioning Double Features ● Setting: You can use the phone to send text messages on the terminal parameter settings ● Set content: Authorized phone number, equipment run various functional parameter settings ● Automatic monitor terminal device sound within 5 meters (based on customer demand from the automotive GPS global positioning system, which can authorize restrictions listener phone number) ● Positioning way: GPS satellite positioning ● Positioning accuracy: Outdoor 5-35 m ● Positioning query: Query positioning platform, SMS inquiries, telephone inquiries, micro-channel query technology parameters ● frequency range: 850 \ 900 \ 1800 \ 1900MHZ ● Data transmission: SMS, GPRS (need to set the APN, China access point CMNET) ● GPS chip: SRF III / U-Blox 5th generation ● GPS sensitivity: -159dBm ● Backup battery: 1500mAh, can work 48 hours ● Supply voltage: DC-9V-30V ● Working temperature: -20 ℃ to + 70 ℃ ● Storage temperature: -40 ℃ to + 85 ℃ ● Operating Humidity: 5-95% RH ● Dimensions: 85 * 63 * 25mm ● Weight: 0.51kg large excavator is ideal for the installation of a positioning system, because the long-term is to put some excavator outdoors, in some construction sites, bridge construction, construction and other sites and other rivers. These places are generally guarded or unguarded very few people, at night a lot of people are willing to visit here, so the safety of these vehicles will be threatened by global positioning system GPS investment, if it is installed in the vehicle positioning system would not in worry about these things. Advantage of using the excavator 1. Positioning System can play a security role, if it is discovered missing the excavator can be found in the shortest time possible vehicle for a vehicle to gain time to recover. 2. do not have transportation back and forth, the excavator is only suitable for use at the site is not suitable for the road, so in some road transport also need the help of some vehicles, the round-trip transportation laborious, but also have some impact on the job. 3. A guarantee of GPS global positioning system to join, excavators now have some insurance, in fact, that after things are missing, how to find your own vehicle is the key after the loss in the shortest possible time, using the positioning insurance system is the last one. 4. savings, excavator is a relatively gas-guzzling vehicles, if it is worried about the safety of transport often and certainly will waste some of the expenses. GPS global positioning system investment, Double electronics, GPS global positioning system provided by Electronic Technology Co., Ltd., Zhengzhou Double. Double Electronic Technology Co., Ltd., Zhengzhou (www.zzgprs.com) is a leader in Zhengzhou, GPS systems, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Double electronic leadership in the staff warmly welcome all inquiries negotiations to create a better future for Double electronics.