The 1010 Series gas diaphragm pump offers 4,000 hr of nonstop operation. The efficient operation and low power consumption of the 0.03-lb unit extends the battery life of the warning device. Features include oilless operation, a sealed air path for contamination-free analysis, and a restart option at low temperatures for use in cold environments. The pump offers maximum continuous pressure to 8.7 psi and maximum vacuum to 14.8 in.-Hg.

Thomas Div., a Gardner Denver Co., 1419 Illinois Ave., Sheboygan, WI 53081, (920) 457-4891,