WellFence offers Credentialed Worksite Access Service. WellFence towers are designed to sign-in / sign-out all personnel to remote work locations and keep track of everyone's "time-on-location". WellFence offers an unmanned no-touch human body temperature measurement ssystem to prescreen workers before they get on locations. Well site locations are safer when everyone on location is counted. The "time-on-location" for employees, contractors and service personnel allows for accurate payroll and 3rd party invoicing, resulting in significant cost savings to operators.