Photoelectric NO/NC Dry Contact Smoke Detector

Features

Infrared Photoelectric Sensing Technology

At the core of the SM30 is infrared photoelectric sensing technology, which detects visible smoke particles produced by slow-burning or flaming fires. This technology ensures quick response times, providing early warning to minimize fire damage and maximize evacuation time.

Adjustable Sensitivity

The detector features adjustable sensitivity, allowing users to tailor its performance to specific environments. Whether installed in dusty warehouses or clean office spaces, the sensitivity can be fine-tuned to avoid false alarms while maintaining reliable smoke detection.

Anti-Interference Design

Equipped with anti-dust, anti-insect, and anti-external light interference features, the SM30 remains unaffected by common environmental irritants. Its unique structural design prevents dust and insects from entering the sensing chamber, while specialized filters block external light sources that could trigger false alarms.

Selectable Reset Modes

Users can choose between power-off reset or auto-reset modes based on their needs. Auto-reset automatically restores the detector to normal operation once smoke clears, while power-off reset requires manual intervention—ideal for environments where confirmation of fire extinguishment is necessary.

Technical Parameters

Power Requirements

The detector operates on a wide range of DC power supplies, ensuring compatibility with standard security system power sources. Its low static current design minimizes energy consumption, making it suitable for long-term use.

Sensing Technology

Utilizes infrared photoelectric sensor technology to detect smoke particles. This technology is highly effective at sensing both slow-burning (smoldering) and fast-burning (flaming) fires, providing comprehensive fire detection coverage.

Alarm Indication

Features a red LED indicator that communicates the detector’s status: flashing for normal operation, steady for active alarms, and off for power failure. This intuitive indication system allows for quick status checks.

Installation Method

Base-mounted design with easy-to-follow wiring instructions. The detector can be installed on ceilings or walls (depending on the environment), with the base providing secure attachment and flexibility in positioning.

Environmental Tolerance

Engineered to operate in a wide range of humidity and temperature conditions, the SM30 is suitable for indoor environments such as homes, offices, and warehouses. Its non-condensing humidity tolerance ensures reliable performance in damp spaces.

Output Interface

Dry contact output with selectable NO/NC configuration. The contact load is compatible with most security system components, ensuring seamless integration without additional adapters.

Reset Function

Offers selectable power-off or auto-reset options, providing flexibility for different usage scenarios. The reset function ensures the detector returns to normal operation after an alarm, reducing manual intervention.

Applications

Residential Buildings

Ideal for residential homes and apartment complexes, the SM30 protects families and residents from fire hazards. Its compact design and quiet operation make it unobtrusive in living spaces, while its reliable detection provides peace of mind.

Commercial Spaces

Suitable for shopping malls, hotels, and retail stores, the detector safeguards customers, employees, and valuable inventory. Its anti-interference features make it effective in busy, high-traffic commercial environments.

Industrial Warehouses

Perfect for warehouses and storage facilities, the SM30 detects smoke from fires involving packaging materials, chemicals, or other combustible goods. Its adjustable sensitivity adapts to dusty warehouse environments without triggering false alarms.

Public Facilities

Can be installed in schools, hospitals, and community centers to ensure the safety of students, patients, and visitors. Its easy integration with building management systems makes it a practical choice for large public spaces.

Office Buildings

Protects office workers and equipment from fire damage. The detector’s non-coded operation and easy installation make it suitable for small to medium-sized office buildings and co-working spaces.

FAQ

Does the Dry Contact Smoke Detector SM30 include a battery?

A1: No, the SM30 does not include a battery. It is powered by a DC power supply (as specified in the power requirements), which can be connected to a security system power panel or a dedicated power source.

How do I connect the detector to a third-party monitoring system?

A2: As a dry contact sensor with selectable NO/NC output, the SM30 can be connected to any third-party monitoring system that supports dry contact inputs. Simply wire the detector’s output terminals to the system’s input terminals, following the system’s wiring instructions.

What type of smoke does the detector detect?

The SM30 uses infrared photoelectric sensing to detect visible smoke particles produced by both slow vulcanization (smoldering) fires and bright (flaming) combustion. This ensures comprehensive coverage for most common fire types.

Can the sensitivity be adjusted to reduce false alarms in dusty environments?

Yes, the detector features adjustable sensitivity that can be modified to accommodate dusty environments such as warehouses or workshops. Reducing the sensitivity helps filter out false alarms caused by dust particles while maintaining reliable smoke detection.