Safety Technology International STI | STI 3350 Wireless Doorbell Chime @SafetyTechnology | Uploaded September 2017 | Updated October 2024, 6 hours ago.
How to install the battery and select one of ten sounds. No through the wall wiring for this quick and easy to install chime. Up to 500' operating range between transmitter and receiver. Button can also be used as a pager for an unattended front office or a bed ridden patient or loved one. For more information or to see STI’s entire line of innovative products visit: sti-usa.com/yt.