Mini Slide Switch 2p2t SMD SMT 4 Pin 2 Position Side Slide Mini Toggle Switches

 

High-Sensitivity Infrared Motion Detection and Automatic Lighting Control Detector Switch

A detector switch is an electrical or electronic device that senses a specific condition, event, or physical change and, upon detection, activates or deactivates an electrical circuit. It converts a non-electrical input (like presence, pressure, heat, or light) into an electrical switching signal.
It typically consists of two main parts: a sensor/detector that monitors the environment, and a switch (often a relay or solid-state component) that controls the connected circuit.
 

 

 

 

 
   

 

Motion Detector Switch

Commonly used in security systems and automatic lighting. It detects infrared radiation or ultrasonic waves to sense movement within its field of view and automatically turns lights or alarms on/off.

Smoke Detector Switch 

A safety device that senses smoke particles in the air. Upon detection, it can either sound a local alarm (as a standalone unit) or trigger a relay switch to activate a building's central fire alarm system, sprinklers, or exhaust fans.

Proximity Detector Switch 

Used in industrial automation and consumer electronics. It detects the presence or absence of an object without physical contact (using magnetic, capacitive, or inductive fields) and sends a signal to control machinery, conveyors, or touchless interfaces.

Level Detector Switch 

Monitors the level of liquids or bulk solids in tanks or containers. When the material reaches a preset level, the detector activates a switch to control pumps, valves, or alarms.

Pressure Detector Switch 

Senses changes in fluid or gas pressure. When pressure reaches a set point, the internal mechanism trips an electrical switch to start/stop compressors, pumps, or provide an alarm signal.

Light Detector Switch / Photoelectric Switch

Senses ambient light levels. It is often used for automatic street lighting or dusk-to-dawn lighting control, turning the connected load on at night and off during the day.

The detector switch provides a binary output signal (typically NO - Normally Open or NC - Normally Closed). It acts as an interface between a sensing environment and a control system. Its primary function is automatic control and protection based on predefined thresholds.

Detector switches enable automation, enhance safety, improve energy efficiency, and reduce the need for manual intervention. They are critical components in process control, security, and smart building systems.

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