Simplex 4098-5265 (MX Photo/Heat Sensor-Isolator)

Simplex 4098-5265 (MX Photo/Heat Sensor-Isolator)

Simplex 4098-5265 (MX Photo/Heat Sensor with Isolator) is an addressable detector in the Simplex MX series, combining a photoelectric smoke sensor and a heat sensor in a single device. It is equipped with a built-in isolator to protect the MX loop circuit in the event of a short circuit. This design provides accurate and reliable detection of both smoke and temperature rise.

Key Features

• Versatile detection – Combines smoke and heat sensing for accurate detection of both smoldering and flaming fires.

• Built-in isolator – Provides short-circuit protection for the loop wiring, ensuring system stability.

• MX Fastlogic technology – Intelligent signal-processing algorithm based on real-fire test data to reduce false alarms while maintaining high sensitivity.

• Soft Addressing via QR code – Simple address assignment using the Digital Enrollment app, eliminating DIP-switch addressing errors.

• Self-test and monitoring – Supports automatic self-diagnostics, self-test functions, and remote LED status indication.

Technical Specifications

• Sensor type: Photoelectric + Heat (multi-criteria)

• Smoke sensitivity (UL-Listed): 2.32 ± 1.51 %/ft

• Current consumption:

  • Supervisory: ~350 µA

  • Alarm: max. ~4.0 mA (excluding remote LED)

• Heat detection settings: Selectable fixed temperature at 135 °F (57 °C) or 200 °F (93 °C), with or without rate-of-rise detection (15 °F/min ≈ 8.4 °C/min)

• Operating temperature range: –13 °F to 158 °F (–25 °C to 70 °C)

• Isolator: Built-in circuit isolator

• Additional functions: Self-monitoring, Self-Test, Status Indicator, Remote LED support