Welcome to our store！</br>1、Pure copper electromagnetic coil with discontinuity and no electromagnetic interference. 2、Strong tapping, stable operation and long service life. 3、Hard metal shell, not easy to deform, the sound reaches 100db, and it is farther and safer. 4、The surface is coated with electroplating technology to make the material more anti-corrosive and less prone to rust and corrosion. 5、Portable wired power supply, easy to install, can be installed on the wall, ceiling and other installation methods. <div class="wang-edit-text"><span style="font-family:Arial;font-size:16px;"><strong>Features:</strong></span> <ul> <li> <span style="font-family:Arial;font-size:16px;">Pure copper electromagnetic coil with discontinuity and no electromagnetic interference.</span> </li> <li> <span style="font-family:Arial;font-size:16px;">Strong tapping, stable operation and long service life.</span> </li> <li> <span style="font-family:Arial;font-size:16px;">Hard metal shell, not easy to deform, the sound reaches 100db, and it is farther and safer.</span> </li> <li> <span style="font-family:Arial;font-size:16px;">The surface is coated with electroplating technology to make the material more anti-corrosive and less prone to rust and corrosion.</span> </li> <li> <span style="font-family:Arial;font-size:16px;">Portable wired power supply, easy to install, can be installed on the wall, ceiling and other installation methods.</span> </li> <li> <span style="font-family:Arial;font-size:16px;">Choose 12V / 24V / 220V according to the voltage you use.</span> </li> </ul> <span style="font-family:Arial;font-size:16px;"><strong>Specifications:</strong></span> <span style="font-family:Arial;font-size:16px;">Condition: </span> <span style="font-family:Arial;font-size:16px;">Color: Red</span> <span style="font-family:Arial;font-size:16px;">Material: Metal</span> <span style="font-family:Arial;font-size:16px;">Size: 4 inches(100mm)</span> <span style="font-family:Arial;font-size:16px;">Power Mode: External</span> <span style="font-family:Arial;font-size:16px;">Optional Voltage: <span style="color:#E53333;">220V/12V/24V</span></span> <span style="font-family:Arial;font-size:16px;">Alarm Volume: 100db</span> <span style="font-family:Arial;font-size:16px;">Surface Treatment: Electroplating</span> <span style="font-family:Arial;font-size:16px;"><strong>Package List:</strong></span> <span style="font-family:Arial;font-size:16px;">1 * Fire Alarm Bell</span> <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> 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> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.