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The ADAMS RITE 29-0218 is a piezo electric horn designed for use in access control and request-to-exit applications. Piezo horns produce a high-frequency audible tone without moving parts, making them a reliable signaling device for door control systems. This unit is sold individually and is installed by security and low-voltage technicians as part of a complete egress or access control assembly. It provides an audible alert to indicate when a request-to-exit event has been triggered at a controlled door or entry point.
The 29-0218 is suited for commercial and light industrial access control installations where an audible signal is required at a request-to-exit station. Typical installations include controlled entry vestibules, office suites, and secured facility doors where a passive infrared or push-button REX device triggers the horn as part of the egress sequence. It is commonly integrated with access control panels and electric latch or strike hardware.
Designed as an OEM-style replacement or upgrade component for request-to-exit access control systems requiring an audible piezo horn signal device.
Installation is typically performed by a licensed low-voltage or security technician. Power down the access control panel before wiring or replacing the horn. Follow local codes and the panel manufacturer wiring diagram when making connections. Verify polarity and voltage requirements at the control panel output before applying power.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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