GSM/GPRS/3G/4G/NB-IoTSensor To Cloud IoT SeriesPage 3 of 37 King Pigeon Hi-Tech. Co., Ltd Ver 1.1Table of contents1. Brief Introduction......................................................................................................................................52. Safety Note................................................................................................................................................53. Packing List...............................................................................................................................................54. Functional Characteristics.........................................................................................................................65. Technical parameters................................................................................................................................ 76. Device Description....................................................................................................................................86.1. Indicator Light Instructions.......................................................................................................... 86.2. Wiring instructions........................................................................................................................86.3. SIM Card Installation................................................................................................................... 97. Factory Data Reset....................................................................................................................................98. Configuration Software...........................................................................................................................108.1. Preparatory Work........................................................................................................................ 108.2. Configuration Software Functions Overview.............................................................................118.3. Basic Settings..............................................................................................................................118.4. Number Settings......................................................................................................................... 138.5. Network Settings.........................................................................................................................148.6. I/O Settings................................................................................................................................. 168.6.1. DO - Digital Output (Open Collector) Settings............................................................. 168.6.2. DIN - Digital Input Settings........................................................................................... 178.6.3. AIN - Analog Input Settings...........................................................................................188.6.4. DS18B20 Temperature Settings..................................................................................... 198.6.5. AM2301 Temperature & Humidity Settings.................................................................. 208.6.6. RS485 Settings................................................................................................................218.7. Timer Settings.............................................................................................................................228.8. Debug.......................................................................................................................................... 239. SMS Instructions.....................................................................................................................................239.1. Set new password........................................................................................................................249.2. Set the SIM card number............................................................................................................ 249.3. Set time of device....................................................................................................................... 249.4. Set the user Tel number.............................................................................................................. 249.5. Query device status.....................................................................................................................259.6. Set working mode....................................................................................................................... 25