SIM800L GSM Module With Aerial

Product features:
The product uses SIM800L module, which has the following characteristics:
* Support global quad-band network
* The serial port is TTL serial port, which can be directly linked with the MCU
* The module starts up automatically and searches the network automatically
* On-board signal indicator (blinking slowly with signal, blinking quickly without signal)
* Machine patch, reflow welding, stable performance
Main parameters:
* Voltage range: 3.7V-4.2V
* Frequency band: four-band, GSM850, EGSM900, DCS1800, PCS1900, can automatically search four bands;
* You can also set the frequency band by using the AT command;
* Transmit power: Class4(2W),GSM850,EGSM900
Class 1 (1W),DCS1800,PCS1900,
*GPRS link features: The default GPRS timeslot is grade 12, GPRS timeslot class8,10,12 is optional;
* Operating temperature range: -40℃ to +85℃
*Sim card interface: Support 1.8V, 3V