Revision as of 08:54, 16 July 2024 by 134.73.128.42 (talk)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)GPS trackers use the same cellular network that mobile phones do to send and receive location data. They also use a SIM card to send text messages and calls.How Does a GPS Tracker Work with a Sim Card?Several different types of GPS trackers operate without a SIM card. Some use the standard cellular network, and others rely on subscription-free wireless technology like Sigfox and Lora.Not all gps trackers require a sim card, however; some devices work only with a computer and an internet connection to download a copy of the almanac and ephemeris from the satellites. These devices can be very useful for a number of purposes, including recording routes when hiking, or using them as a logger to record data from a vehicle on a map.Some GPS trackers plug in to a port on a car, or can be powered by the battery. This makes them compact and easy to install.Many of these devices feature an OBD-2 port, a connector required by almost every new automobile sold in America. man down devices These ports are used by technicians to connect their computers to various sensors in a car.They can send notifications whenever a vehicle is started or stopped. employee gps tracking They can also choose between active and sleep modes, which report data less frequently to save the vehicle's battery power.GPS trackers can also include a variety of other features, including geofences, which are preselectable zones on a digitized map that alert users when a vehicle leaves a designated area. These features are often customizable in the tracker's app, and can be especially handy for businesses, who may want to monitor their employees or other assets while on the go.