Manufacturer Name: Honeywell Analytics Product Number: E3NO2 OEM Part Number: E3NO2 Product Description: Nitrogendioxide(No2)Sensorcart Weight:0.07lbs/31.75g The Honeywell Analytics E3NO2 Nitrogen Dioxide (NO2) Sensor Cart is a replaceable component designed to detect and monitor nitrogen dioxide (NO2) gas levels in industrial environments. https://www.partshnc.com/e3no2-honeywell-analytics-nitrogendioxideno2sensorcart