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Sensors & Modules

PIR Motion Sensor HC-SR501 + Single Channel Relay Module Pack

PIR motion sensor and single channel relay module combo for automatic light control, motion-activated appliances, security alarms and DIY home automation projects.

Brand: OTSSKU: SEN-PMSH-6975

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₹270₹499-46%

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Key Highlights

1 × HC-SR501 PIR motion sensor
1 × Single channel relay module
Motion-activated switching
Suitable for automatic lighting projects
Useful for security and occupancy-based automation
Compatible with suitable Arduino, ESP8266 and ESP32 projects
Adjustable PIR sensitivity and delay on compatible HC-SR501 modules
Beginner-friendly DIY electronics project pack

Description

This DIY automation pack includes an HC-SR501 PIR motion sensor and a single channel relay module. The PIR sensor detects changes in infrared radiation caused by moving people or warm objects, while the relay module can switch a compatible electrical load through a suitable control circuit.

Use this combo to build motion-activated lighting, automatic switching systems, entry-area alerts and other DIY electronics projects. The PIR sensor provides a digital output that can trigger a compatible relay module, depending on the relay input requirements and wiring configuration.

Technical Specifications

General

Brand: OTS
SKU: SEN-PMSH-6975
Category: Sensors & Modules

Additional Specifications

Pack type: PIR sensor + relay module
PIR sensor: HC-SR501
Sensor type: Passive Infrared (PIR)
PIR interface: VCC, OUT and GND
PIR supply voltage: Typically 5V–20V DC for common HC-SR501 versions; verify the supplied module
Relay channels: 1
Relay coil voltage: Depends on the supplied relay module; verify before connecting
Relay contacts: COM, NO and NC, if provided by the module
Control method: PIR digital output through a compatible relay input or driver circuit
Application: Motion-triggered switching and low-voltage automation projects

Frequently Asked Questions

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