Simplex (4098-9602) Photoelectric Smoke / Heat Detector 0677128


SKU: 4098-9602

TrueAlarm photoelectric smoke detector with TrueSense smoke/heat detection

Simplex 4098-9602 Smoke / Heat Detector  0677128

Simplex® 4098-9602 detectors combine photoelectric smoke detection technology and quick response thermistor-based heat detection technology into a sophisticated, intelligent detector that analyzes each of these activities and their combination to determine whether alarm conditions are present.  An onboard microprocessor provides four independent detection modes: photoelectric detection with TrueAlarm sensitivity drift compensation, fixed temperature heat detection, rate-of-rise temperature heat detection, and TrueSense photoelectric/heat trending analysis and alarm detection.  If any of these alarm conditions are experienced, an alarm is initiated.

This TrueSense detector head is ideal for detecting both heat and photoelectric smoke, and it is compatible with 4001, 4002, 4020, 4100, and 4004 series control panels.  If you are in need of a new detector head that can get the job done, order this replacement part today.

For more details, contact the Life Safety Consultants team at (888) 557-0558, or email us at:


Additional information

Weight .1 lbs
Dimensions 4 × 4 × 2 in


Part Type

Heat Detector, Photoelectric, Sensor, Smoke Detector



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