Comparison : |
Item # Model 481N4, Model 481N4, Carbon Monoxide Analyzer (infrared), Wall Mounted NEMA4 (IP65) Enclosure Rating Item # Model 481N4N7, Model 481N4N7, Carbon Monoxide Analyzer (infrared), ex-proof sensor housing with NEMA4 wall-mount control cabinet (two separate enclosures) Item # Model 481N7MC, Model 481N7MC, Carbon Monoxide Analyzer (infrared), Wall Mounted NEMA7 UL/CSA Explosion-proof with Non-intrusive Magnetic Calibration, Class 1 Div 1 Group BCD Item # Model 481RMN7, Model 481RMN7, Carbon Monoxide Analyzer (infrared), ex-proof sensor housing with rack mount control cabinet (two separate enclosures) Item # Model 481 D1 or D2, Model 481 D1 or D2, Carbon Monoxide Analyzer (infrared) - 481 Series; NEMA 4 cabinet with Hazardous Area Purge System
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