This Industrial Scientific SP40 Sampling Pump is perfect for use with the M40 unit. It is designed for efficient and accurate sampling of gas detectors and monitors. The pump is made by a trusted brand in the industry and is classified as a unit type. It has a model number of 1810-5437-5460 and is suitable for use in various settings, including business and industrial environments. The pump is compliant with California Prop 65 Warning, which requires that it be labeled as a potential cancer and reproductive harm. It is categorized under Gas Detectors & Monitors, Test Meters & Detectors, Test, Measurement & Inspection, and Business & Industrial. This pump is an essential tool for anyone who needs to conduct accurate and efficient gas sampling.