GPRS GPS A9G Core Board Module

GPRS GPS A9G Core Board Module
Remote monitoring intercom with GSM and microphone/speakers,
Remote monitoring camera with GPRS + TF + camera extension board,
Wechat payment slot machine scheme with the slot machine function.
Anti-theft tracking device with GPRS + GPS and accelerometer
Supports voice calls and SMS messages.
Supports GSM/ GPRS frequency: 850/ 900/ 1800/ 1900 MHz.
Supports GPRS data service, the maximum download data rate is 85.6 Kbps, upload data is 42.8 Kbps.
Supports GSM07.07, 07. 05 AT commands and Ai-Thinker explosion command.
Supports 3 serial ports, one download serial port, one AT command port.
Specifications
Size: 19.2mm x 18.8mm x 3mm
Working temperature: -30 ℃-80℃
Working voltage: 3.5v – 4.2v (it’s best to power by 4v)
Power voltage: >3.5 Volts
Low power consumption:
Sensitivity GPIO level: 2.8 volts