● REVEX Security Alarm SGA300 Space Pressure Sensing System ● Space Guard Security System: One unit covers all doors and windows in an enclosed space. Includes many extras. ・For home, office, store, or car security! Detects pulling on a doorknob or striking window glass! Easy security measures! ・Alarm sounds for 30 seconds, then enters alert mode. ・Chimes to announce entry/exit when occupied. ・Simple and easy to use! ・Simply place on a flat surface like a shelf, desk, or floor, and adjust the sensitivity according to the size of the space! ・No wiring or installation work required, so anyone can use it. Power: Main unit / 6 x AAA alkaline batteries (sold separately) Remote control / 12V battery (newly installed) ⚫︎ DC9V-12V external input [terminal] available. ★ I will include an AC adapter, normally sold separately. ※ You can use it without worrying about battery depletion. ⚫︎ Remote control has an emergency bell function. The alarm continues to sound until turned OFF with the remote control. Main unit material: ABS resin ★ Remote control uses AAA batteries. ★ Since these batteries are expensive, I will include 4 of them (one is already in the remote control). ※ Currently sold on Rakuten for ¥7980 ※ Operation confirmed. It truly detects changes in air pressure within the indoor space and triggers the alarm and chimes. No operational guarantee after shipping, so please consider it as junk.