This Simplex 4090-9002 individual addressable relay module is a reliable and high-quality choice for your fire alarm needs. Made in Mexico, this unit comes with a California Prop 65 warning for fire safety. Designed for use with Simplex fire alarms, this unit is a must-have for any facility maintenance and safety needs. With its unit type as a module, this item is a single unit quantity intended to be used in specific fire alarm systems for effective protection. Whether you need it for business or industrial purposes, this relay module is an excellent choice for reliable and efficient fire protection.