Elpa Security Slim Alarm Value 4-Piece Set

This is a slim, low-profile security alarm that detects impacts and opening of window glass, sounding a loud alarm.
My home was unfortunately targeted, and I purchased a large quantity of security items. I am now selling the surplus.
The red items have sensors that activate when the window slides open, while the blue items detect impact only. As you can see, I have removed one sensor from the top-left item as only one was needed for my home. For the top-right impact-only item, I have removed the battery, but it is a standard CR2032 battery available at 100-yen shops, so I hope the buyer can procure one. This is a great deal, as purchasing all of these on Amazon would cost around 8,600 yen.
After researching various security websites, I discovered this product and found it to be excellent. I can now leave my home with peace of mind.

- Brand: ELPA
- Model Number: ASA-W13-2P (PW)
- Functions: Impact detection, opening detection
- Set Contents: 4 packs of 2 units each
- Battery Used: Lithium battery CR2032
- Color: White

Thank you for looking.