General description The 4X High Sensitive Earthquake Vibration Detector Alarms are designed to provide reliable security against vibrations and shocks. These alarms feature a powerful 120dB sound output, ensuring that any disturbance is promptly detected and alerted. Technical specifications Operating voltage: DC 9V (9V alkaline battery, battery not included) Alarm sound pressure: 120dB Induction method: vibration alarm Start delay: 15 seconds Alarm delay: 30 seconds Dimensions: 90 x 55 x 27mm Material: Plastic Installation Magnetic back for easy attachment to metal surfaces Can also be hung for versatile installation options Usage Toggle the switch to the "ON" position; the red indicator will fade and turn off after 15 seconds In alert state, the alarm will emit a sound when triggered by vibrations or shocks Alarm duration is approximately 30 seconds Other information Package Contents: 4 x Vibration Detector Note: Light reflection and different displays may cause color variations