Labtron manufactures the Portable Nitrogen N2 Gas Detector, a handheld instrument for real-time nitrogen monitoring in industrial, laboratory, and environmental applications. It measures 0 to 100% VOL with 0.01% VOL resolution and supports detection of up to five gases. A built-in sampling pump with adjustable flow control and a three-layer filtration system support gas sampling. The 3.5-inch LCD displays concentration readings, trend curves, pump status, and alarm indicators. Data storage supports up to 100,000 records with USB download and wireless communication options. The rechargeable battery and compact design suit safety inspections and gas monitoring workflows.