Promoting safety, security, and process efficiency, Limitless™ series helps industrial facilities add independent layers of protection and optimize processes by monitoring equipment in hazardous locations. Switches can be used to provide plant operator with notification if employee uses specific equipment and can provide records on duration and time since last testing. Operating on one set of AA batteries for one year, products transmit wireless frequencies via WPAN 8.02.15.4 at 2.4 GHz.