SDi TT801 Trutest Smoke Detector Sensitivity Tester

Ensure accurate, compliant smoke detection across your sites with the SDi Fire Trutest Smoke Detector Sensitivity Tester (TT801). Designed for maintenance teams, fire contractors and security professionals, the Trutest delivers a fast, single-test measurement of actual detector sensitivity — so you know whether a detector is within specification, not just how much it has drifted. The UL-listed, battery-operated unit is fully portable for rooftop and ceiling access, and auto self-calibrates before each test to guarantee reliable results. Calibrated to report sensitivity in %/ft, the TT801 supports both ionization and photoelectric detectors, streamlining routine testing and documentation for fire safety audits, monitoring and security compliance. By providing clear, repeatable readings, Trutest helps reduce false alarms, minimize downtime and simplify preventative maintenance programs. Ideal for facilities managers, integrators and service teams responsible for surveillance and life-safety systems — add the SDi Trutest TT801 to your inspection toolkit for faster, more confident detector testing.

• Fast, single-test sensitivity measurement that reveals true detector performance and reduces false alarms
• Portable, battery-operated UL-listed kit for on-site maintenance and compliance testing
• Calibrated results displayed in %/ft for clear, repeatable documentation of detector sensitivity
• Auto self-calibration before each test ensures reliable readings without manual adjustment
• Works with both ionization and photoelectric detectors to simplify fleet-wide testing
• Complete kit (head unit, control box, membranes, charger, storage case) for ready-to-use field inspections