This product uses industrial touch 4.0”/7” LCD screen with high stability, high accuracy, and high intelligence. This system is widely used in applications where toxic gases need to be detected. When the indicator of a certain gas to be tested in the field exceed or fall below the standard, the system will perform a series of alarm action, such as alarm, exhaust, tripping, etc. Features The Unit Switch Software Calibration Chinese-English switching Independent air chamber All software automatic calibration The curve shows the alarm log