Welcome to our store！</br>1、The earthquake detector is designed to provide instant warning of seismic activity by detecting the P wave (compression wave) of an earthquake. 2、The sensitivity of the earthquake detector can be adjusted, support automatic reset and cut-off alarm when the earthquake stops. 3、It can be easily mounted on the wall without screws, nails or tools. 4、Earthquakes that occur many miles away can be detected, and a loud unique alarm sounds to remind you. 5、The earthquake detector can eliminate confusion, save valuable seconds and provide peace of mind. <div class="wang-edit-text"><div>Condition: 100% Brand New Item Type: Earthquake Detector Material: ABS Color: White Size: Approx. 16 x 7.5 x 3.5cm / 6.3 x 3.0 x 1.4in Power Supply Mode: 1 x 9V Battery (not included)</div><style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style></div> 1 x Earthquake Alarm Detector Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>