This alarm is to install a sensor on the window or door. If you put the SIM card in the alert, it will call you the voice call. It can detect temperature and humidity and display on the screen, support Tuya's smart life app and Alexa.
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Sabre Home Security Wireless Door or Window Burglar Alarm. Condition is New. Shipped with USPS Ground Advantage.
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eBay
Open box, appears unused. Includes main hub, power adapter, motion sensor, door/window sensor, wired sensor, mounting screws, and manuals (Quick Start Guide & User Manual). Box has light wear from storage.
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eBay
There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open.
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This product link is for the WIFI version, if 2G/4G is required. The security panel adopts a 12mm ultra-thin body, with a minimalist design. It is small in size and does not take up space. There is a lithium electronic battery in the security.
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Sos：One-key alarm. Alarm Current：≤10mA. Resistance：330K ohm. Built-in button battery: 3V (CR2032). Transmitting Distance：≤100m (Open Area Interference). The Button Functions You can learn about the operation of related products through this link on Youtube.
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