SIM800L GSM GPRS Module Board Micro Sim Transfer Card Core Board Quad Band

SIM800L GSM GPRS Module Board MicroSIM Transfer Card Core BoardFeature Module models SIM800L latest module performance than SIM900 M590 Operating voltage 3 7 4 2 V peak current is 1A Support network China mobile China unicom and four frequency network around the worldModule size 2 5 x 2 3cmTTL serial port can directly link to MCU Dont need a MAX232Power on automatic startup automatic search networkOnboard one channel indicator light with signal slow flash no signal quickly flash Note Bad signal area can adds the antenna Package includes 1 x SIM800L GSM Module