Model SJJ-IIIIndustrial Monitoring System is specially developed and manufactured by Hubei Jianghan Petroleum Instrument & Meter Co., Ltd. to monitor actual conditions of working site around drilling rigs and other industrial places that need to be monitored. It can meet the requirements of drillers for real-time, dynamic, visual monitor of some important places at well site as mud pumps, drums of drawworks, monkey board, and etc. It displays working status of drilling rig. It is one of the important devices that guarantee safe operation of the rig, improve drilling efficiency, ensure drilling quality and reduce production cost. The system is especially useful during tripping operation. With the help of the system, the driller does not need to look up carefully the position of traveling block or make sure if it has reached the monkey board; it efficiently reduces labor intensity and improve controlling accuracy.