Features 1、The electric bell is made of stainless steel to resistant rust. 2、The bell hammer is of high quality and the bell sound is graceful. 3、Easy to install,can be installed at anyplace easily. 4、Suitable for being sound signal and alarm at factories, schools, railways and indoor public places. 5、The electric bell is an inner strike type of no spark. Specification Features: The electric bell is made of stainless steel to resistant rust. The bell hammer is of high quality and the bell sound is graceful. Easy to install,can be installed at anyplace easily. Suitable for being sound signal and alarm at factories, schools, railways and indoor public places. The electric bell is an inner strike type of no spark. Specification: Bell Diameter: 100mm/4in Wattage: 10W Material:Stainless Steel Switch Capacity:Resistance 10A Package List: 1 x Electric Bell Package List