The 1100 series magnetic level indicator from SOR Controls Group provides an alternative to traditional sight glasses. Vessel contents are totally contained within the float chamber for use in high-pressure systems. External point level switches or continuous level transmitters can be incorporated into the system without breaking the pressure boundary or disturbing existing piping. Applications include oil and water separators, flash drums, surge tanks, gas chillers, vacuum tower bottoms, alkylation units, propane vessels and storage tanks. 800/676-6794; www.sorinc.com.