Nile Shield

Simplex Conventional Photo-Heat Detectors

Simplex

Simplex Conventional Photo-Heat Detectors

Simplex conventional photo, photo-heat, and heat detectors are detection devices for two-wire or four-wire conventional initiating circuits, with built-in sensitivity drift compensation and an onboard microprocessor evaluating detector status.

Available with multi-option bases, auxiliary relay output, and remote LED indication, they are suitable for facilities using conventional fire alarm systems that require stable and easy-to-maintain smoke and heat detection.

Simplex Conventional Photo-Heat Detectors

Simplex conventional detectors provide many proven sensing features for applications where detectors are connected to conventional two-wire or four-wire initiating device circuits (IDCs).

The range includes models such as the 4098-5601 Photo and 4098-5602 Photo-Heat detectors, with stable photoelectric smoke detection and sensitivity drift compensation, plus rate-of-rise and fixed-temperature heat detection on appropriate models.

The chamber enclosure design enhances smoke capture by directing flow to the sensing chamber while keeping entrance areas minimally visible when ceiling mounted, and operation supports ceiling or wall mounting with EMI compatibility.

A multi-function LED indicates normal and alarm conditions and supports magnetically operated functional testing that helps verify performance and prioritize maintenance when cleaning or service is needed.

By combining photo and heat detection, sensitivity compensation, 2/4-wire bases, and magnetic testing, these detectors provide a practical and reliable solution for conventional fire alarm systems.

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