STI Wireless Entry Alert Sensor

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Receive Alerts When Your Door is OpenedMonitor a door and receive an alert when it opens using the STI Wireless Entry Alert Sensor. Part of the STI Wireless Chime Series, the senso r wirelessly communicates with an STI Wireless Receiver (sold separately) to notify you when triggered. The sensor consists of two parts — the main battery-powered sensor and a magnet — which install on the door frame and the door itself. When the door opens and the two parts are separated, an alert is triggered. Monitors a door to alert you when the door opens Works with any STI Wireless Receiver Includes double-sided tape for easy mounting Contents Entry Alert Sensor Battery, AAA Double-Sided Tape Note: Requires an STI Wireless Receiver to alert you. This sensor is not self-supervised for low battery; check battery every 6 months to ensure reliable operation.We Protect The Things That Protect You®Safety Technology International (STI) is a family owned and operated business that began over 35 years ago with Jack Taylor's invention of the Stopper Pull Station Protector. STI now markets more than 1,000 products throughout the world that help prevent false fire alarms, theft, and vandalism of the devices that protect us all. Show more