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The Safety Technology International STI-3300 is a wireless doorbell extender and chime receiver designed to connect to your existing hard wired doorbell, allowing the chime to be heard in remote areas of your home or office. This product ensures that no visitor goes unnoticed, even in extensive facilities or homes where the original doorbell sound does not reach.
The STI-3300 not only extends the reach of your traditional doorbell but also offers two selectable chime sounds, allowing for customization based on your auditory preference. It plugs directly into a standard 120V AC outlet and is compatible with multiple chime units.
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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