The TS3 Rook Capsule, model TS3-001, is a replacement cartridge for the Testifire smoke detector testing system. This capsule provides a reliable supply of test aerosol for optical smoke detectors, enabling accurate and consistent performance checks. Each capsule supports up to 900 tests, ensuring long-term usability for maintenance and compliance checks in residential, commercial, or industrial safety systems. The product is compatible with Testifire devices and is essential for the routine testing of smoke detectors to meet fire safety standards. Specifications include a single capsule per unit, with dimensions and weight optimized for easy handling and storage. Made from durable materials, it offers reliable operation under various environmental conditions, helps maintain detector sensitivity, and reduces false alarms. Ideal for safety professionals, facility managers, and homeowners who prioritize proactive fire protection, this replacement part ensures that fire alarm systems remain functional and effective. Use it as part of a regular testing schedule to confirm that optical smoke detectors respond correctly to simulated smoke, thereby contributing to overall building safety and regulatory compliance.