HES PZ1 Single-Gang Piezoelectric Keyplate Switch

Add a piezoelectric switch interface at a controlled-door location with a single-gang keyplate format. The HES PZ1 provides a dedicated physical-security activation point for systems that require a local control input at the opening. Its keyplate-mounted construction concentrates the switch interface into a familiar wall-mounting footprint rather than requiring a larger specialty panel. Piezo actuation makes this unit a fit where the required function is a compact, clearly located switch point associated with a door-control circuit. The single-gang format helps maintain a consistent installation approach at doorways, vestibules, secured interior areas, and other access-controlled openings. It can be considered where the mounting location calls for a keyplate-style control rather than a larger enclosure or multi-control station. PZ1 is distinguished by its combination of piezo switch actuation and a single-gang keyplate configuration. That pairing identifies the product as a focused access-control interface component, not a complete locking device, reader, or control panel. Specify the mounting location and the control-circuit requirements before installation so the switch function aligns with the intended door operation.