ONETEST-100AQL series portable air quality detector is mainly composed of touch LCD screen, keys, ARM microprocessor as the core of the motherboard, main power supply, external transmitter power supply, intelligent channel board, large capacity FLASH, the parameter sensor and so on: Built-in large capacity FLASH, FLASH data can be quickly dumped to the computer through the USB FLASH disk, the capacity of the built-in flash is 30M bytes, the fastest 1 second record once all the channel data, digital display interface, real-time curve picture, can parameter setting multi-point alarm function, built-in lithium battery, can be continuous power supply for more than 13 hours.