Di Weiss SIM800L Quad-band Network Mini GPRS GSM Breakout Module

Description

Module type: SIM800L Working voltage: 3.7~4.2V TTL serial port, can be directly linked with single chip microcomputer. Don't need MAX232 Automatic startup power module, automatic network Onboard signal lights all the way. It flashes slowly when there is a signal, it flashes quickly when no signal.