SDi TC3 Testifire CO Detector Tester Capsules, 3-Pack

Keep carbon monoxide detector checks quick, safe and repeatable with SDi Fire TC3 Carbon Monoxide testing capsules. Designed as Testifire-compatible CO detector tester cartridges, this 3-pack delivers consistent, manufacturer-approved stimulus for routine detector maintenance and security monitoring programs. Each green TC3 capsule is non-flammable and non-pressurized for safer handling, and yields approximately 150 uses per capsule—minimizing service visits and lowering total cost of ownership. Capsules are individually vacuum sealed to preserve effectiveness and remain good for about three months after opening, so technicians can stage replacements confidently. Optimized for Testifire Testifire 2000/2001 units and other approved Testifire models, these cartridges integrate into existing detector maintenance workflows used by security integrators, facilities teams and alarm service providers. Ideal for surveillance and building-safety maintenance, the SDi TC3 supports compliance testing and helps ensure uninterrupted monitoring of occupied spaces. Order this 3-pack of CO detector tester capsules to streamline routine testing, reduce downtime and keep your life-safety systems operating reliably.

• Ensures reliable CO testing for maintenance and compliance, keeping detection systems in optimal working order
• Manufacturer-approved compatibility with Testifire units for accurate, trusted results
• Long-lasting: approximately 150 effective tests per capsule, reducing refill frequency and downtime
• Safe to store and transport—non-flammable, non-pressurized, and non-hazardous for facilities and service teams
• Individually vacuum-sealed capsules retain freshness; each is good for ~3 months after opening
• Pack of 3 provides on-hand spares for routine service schedules and site-wide monitoring programs