The Intrusion Detection Alarm SA-01 is an easy-to-install security device with a maximum detection range of approximately 7m and a detection angle of 120 degrees, also featuring volume adjustment. 〇 No discounts (will block) 〇 Please refrain from purchasing if you are in a hurry to ship before the deadline. The item has been opened once and repackaged after a functionality check. Therefore, it is not completely new, but it is unused. Please refrain from purchasing if you have any concerns. - Brand: REVEK - Model: SA-01 - Function: Intrusion Detection Alarm - Installation: Easy Installation - Detection Angle: 120 degrees - Detection Range: Up to approximately 7m - Volume Adjustment: Volume adjustment function available Thank you for viewing.