Portable 12 and 24-V brush dc or bldc motor versions feature low EMI/RFI levels. The compressor housing ensures low-noise operation. The pumps come in single and double-head versions, have a 4.5-lpm flow rate/head, and generate 22 psi, or 23-in.-Hg vacuum. Applications include analyzers, samplers, and other medical devices.

KNF Neuberger Inc., Two Black Forest Rd., Trenton, NJ 08691, (609) 890-8600, knf.com