Shenzhen Yiyun days Electronics Co., Ltd. is a research, production and sales in one of the emerging high-tech companies to provide customers with quality products while providing strong technical support and quality assurance, and provide appropriate solutions : 1, fixed-line gas detection alarm, gas transmitter, output: 4-20mA, RS485, wireless, Ethernet transport, live sound and light alarm, SMS alarm. Detection Method: Diffusion-type, pipeline, pump-priming, flow-through options, a computer monitor can be connected directly or through a computer monitor and then into the future controller. You can view and other records and curves 2, portable gas detection alarm, gas analyzer, pump-priming measure, 3.7V high-capacity polymer battery-powered 3, gas alarm controller, you can enter at the same time are 4 4-20mA 20mA output, RS485 output, RS485 or RS485 input is also available in output, eight digital outputs. 4, to provide personalized custom services.