Mettler Toledo offers WMS weigh modules. The WMS weigh modules are made of FDA-compliant stainless steel, with up to 92 updates per second with up to 4,000,000 points of resolution for real-time tracking and dosing process control, according to the company. The WMS modules are controlled directly using a PC via RS232 or RS 422, with a digital I/O built in and a range of weigh platform offerings, allowing users to weigh both on top of and under the modules.