The BACnet Testing Laboratories is an organization established by BACnet International to test products and activities ensuring compliance and interoperability as per the BACnet standard. A BTL Listing or/and Mark is an assurance of the conformance required by many specifications to be eligible to bid on a project.
After a series of tests led by an independent recognized laboratory, PcVue Solutions is now BTL Listed for its B-OWS interface.
The BACnet Operator Workstation (B-OWS) is a refined operator interface for monitoring, control and editing of a system on a daily basis.
See the official BTL Product listings here.