Wireless gas content monitoring device for controlled atmosphere cold storage

The utility model relates to the field of gas monitoring. The utility model discloses a gas content monitoring device for a wireless controlled atmosphere cold storage. The system comprises a computer, a sensor node device and a gateway node device, sensor node device: a first lithium battery, a first antenna, a sensor control circuit board, an oxygen gas sensor, a carbon dioxide gas sensor, an ethylene gas sensor and a gateway node device are arranged in the first rectangular sealing box; a second lithium battery, a second antenna and a gateway control circuit board are arranged in the secondrectangular sealing box; the second lithium battery is electrically connected with the gateway control circuit board, the gateway control circuit board is provided with a USB interface, a second reset button, a second wireless transceiver chip, a second data bus and a second microcontroller, and the first wireless transceiver chip and the second wireless transceiver chip are in wireless communication. The device is small