Attractive, high-quality surface mounted chime for heavy duty commercial and industrial use. Heavy duty construction throughout. No exposed terminals. Underdome construction. Built-in resonator. Convenient adapt plate mounting. Plastic tipped stainless-steel striker. Special hanger for easy mounting. Tamper-proof cover screw. Requires no lubrication. Can be pulsed as rapidly as 10 pulses/sec. AC, 14 pulses/sec. DC. Low current drain. Satin aluminum finish.