This high-quality smoke and heat detector from ADT is a must-have for any business or industrial property. With its reliable performance and advanced features, the Tyco ADT Thorn 801PH MX Optical Smoke and Heat Detector 516.800.500 is the perfect choice for fire protection. Designed to detect smoke and heat in their early stages, this detector provides an early warning to protect your property from damage. Its brand name, ADT, is synonymous with quality and reliability. Whether you're a business owner or a professional in the fire protection industry, this smoke and heat detector is a valuable addition to your fire safety equipment.