Product Information:

• Microcontroller Model: SIM800L (latest model, better performance than SIM900 and M590)
• Operating Voltage: 3.7 ~ 4.2 V (peak current consumption 1A)
• Supported Networks: China Mobile, China Unicom, and four global network frequencies
• Model Size: 2.5 x 2.3 cm
• TTL Port: Directly compatible with MCU, no need for MAX232
• Functions: Automatic startup and automatic network search
• Indicator: One indicator channel (slow blinking for signal, rapid blinking without signal)

Packaging includes: 1 x SIM800L GSM Module with antenna