Nitrogen oxide waste gas detection device capable of eliminating ammonia gas interference determination

The utility model discloses a nitrogen oxide waste gas detection device capable of eliminating ammonia interference determination, which comprises a detector body, a plastic elastic piece is fixed on the rear end face of the detector body, and a connector is fixed on the upper end face of the detector body; the first magnet is fixed in the connector, a mounting plate is further arranged in the connector, and an electrode holder is fixed on the mounting plate; the nitrogen oxide detection probe is arranged above the connector, a connecting sleeve is fixed at the lower end of the nitrogen oxide detection probe, the connecting sleeve is connected with the connector, and a pin is fixed at the lower end of the connecting sleeve. According to the nitrogen oxide waste gas detection device capable of eliminating ammonia gas interference determination, a magnetic attraction type mounting and fixing structure is adopted, a nitrogen oxide detection probe can be conveniently disassembled, assembled and replaced, the main