Gamewell-FCI ATD-L3-IV Fire Alarm Heat Detector Head - This advanced thermal sensing unit provides reliable, high-speed detection for critical life-safety fire alarm systems. Engineered for precision, it monitors ambient temperature shifts to ensure rapid response when threshold limits are exceeded. - Operating Voltage Range: 15V to 32V DC - Thermal Sensitivity: 135°F fixed temperature setpoint - Current Consumption: 300µA standby current - Installation Compatibility: Standard analog addressable mounting bases - Operational Humidity: 10% to 93% non-condensing relative humidity

Compared to legacy thermal sensors, this modern detector head offers superior stability and reduced false alarm triggers through refined digital signal processing. While older models often required more frequent manual recalibration, this unit delivers consistent, long-term performance within complex addressable fire networks, ensuring simplified maintenance for facility managers.

Advanced Sensing Performance

The ATD-L3-IV utilizes state-of-the-art thermal thermistor technology to provide accurate and consistent heat detection across diverse environments. By leveraging intelligent digital communication, this detector minimizes system noise and improves overall reliability in mission-critical fire safety applications. Its robust design ensures that it remains operational under demanding conditions, providing peace of mind for both installers and end-users who require dependable, code-compliant life-safety infrastructure.