wireless module
SL871GN2106R002 is an multi-constellation GNSS module with integrated GNSS and GSM/GPRS designed by Telit. It has an integrated GLONASS/Beidou/Galileo/GPS receiver with up to -162dBm sensitivity and up to 1 microsecond synchronization time. It has an integrated GSM/GPRS transceiver with Quad-Band 900/1800/850/1900 MHz and low power consumption. SL871GN2106R002 also supports multiple location technologies including geofencing, assisted GPS, E-compass, and wireless positioning system. It has built-in watchdog and reset circuitry, and an I/O interface.