Bosch D341 Fire Alarm Duct Smoke Detector - This professional-grade sensing unit provides reliable smoke detection within HVAC air handling systems to prevent fire spread through building ventilation. - Operating Voltage: 24V DC - Sensitivity Range: 0.7% to 3.8% obscuration per foot - Temperature Rating: 32°F to 120°F - Air Velocity: 300 to 4,000 feet per minute - Dimensions: 13.5 x 5.5 x 2.75 inches

Offering superior performance over legacy detection models, this Bosch D341 integrates seamlessly into modern fire alarm control panels. It maintains tighter tolerance levels for environmental variables, ensuring your safety infrastructure meets current industry standards for life-safety monitoring and rapid-response activation.

Advanced Ventilation Monitoring

Engineered for high-reliability, this detector utilizes sophisticated air-sampling technology to identify particles even in high-velocity airflow environments. Its robust housing protects internal circuitry from debris and dust accumulation, minimizing the risk of false alarms while maximizing the longevity of your fire safety investment. The precise calibration ensures that localized smoke is detected immediately, allowing for automated shutdown of air handling equipment before hazards circulate further.