Norcross Corp. (Newton, Mass.) has introduced the M10 viscosity sensor, which includes a reactor connection and is designed for end-point polymerization in pressurized or vacuum vessels. The sensor uses the “piston time-of-fall” method for measuring viscosities from 0.1 to 100,000 cps, operates a vacuum up to 100 psi/6.89 bar and has a 2-inch/51-mm 150# ASA mounting flange. The device is said to be a suitable replacement for manual viscosity measurement techniques and can be used in conjunction with a PLC to provide automatic sampling and process control. The sensor can be equipped with 12 different piston rods for installation in tanks with depths ranging from 12 inches to 144 inches (30.5 cm to 365.8 cm).