SKU: SENS-1946
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Generic MH-SR602 Mini PIR Motion Sensor Module - 3-5m Range, 3.3-15V DC

₹81.00 (Inclusive of all taxes)
Out of Stock

The MH-SR602 is a compact pyroelectric infrared (PIR) motion sensor module designed for detecting human presence within a 3 to 5-meter range. Operating from a wide 3.3V to 15V DC supply, it provides a 3.3V high-level output signal compatible with microcontrollers like Arduino, ESP32, and Raspberry Pi for security, lighting, and automation projects.

Features

  • Wide operating voltage range from 3.3V to 15V DC
  • Ultra-low quiescent current of only 20µA for battery-powered applications
  • Adjustable output delay time from 2.5 seconds up to 1 hour via resistor change
  • Compact form factor measuring just 15 x 15 x 20 mm
  • Digital output signal: High level = 3.3V, Low level = 0V

Out of stock

Description

The MH-SR602 Mini PIR Motion Sensor Module utilizes a pyroelectric infrared sensing element to detect changes in thermal radiation, specifically tuned for human body movement. The module includes a Fresnel lens to focus IR signals and onboard signal conditioning circuitry that filters noise and provides a clean digital output.

Designed for low-power operation, its 20µA quiescent current makes it suitable for always-on, battery-driven systems. The output high-level duration is factory-set to 2.5 seconds but can be customized by replacing a surface-mount resistor, allowing for tailored response times in various automation and security scenarios.

Key Features

  • Pyroelectric Infrared (PIR) sensing principle for reliable human motion detection
  • Integrated Fresnel lens extends detection range and improves sensitivity pattern
  • Onboard comparator provides stable digital output, eliminating analog signal drift
  • Wide voltage compatibility supports integration with 3.3V and 5V logic systems
  • Ultra-low power consumption ideal for wireless and solar-powered nodes
  • Compact and lightweight PCB design for easy mounting in confined spaces
  • Output delay time is user-adjustable via a single resistor value change

Applications

  • Automatic lighting control for corridors, stairwells, and storage rooms
  • Battery-powered security alarms and intrusion detection systems
  • Energy-saving controls for HVAC and office equipment based on occupancy
  • Smart home automation triggers for activating cameras or notifications
  • Presence detection in interactive displays and vending machines

Technical Specifications

Model NumberMH-SR602
Detection PrinciplePyroelectric Infrared (PIR)
Sensing Distance3 to 5 meters
Operating Voltage3.3V to 15V DC
Quiescent Current20 µA
Output SignalDigital (High: 3.3V, Low: 0V)
Default Output Delay2.5 seconds (adjustable up to 1 hour)
Dimensions (L x W x H)15 mm x 15 mm x 20 mm
Weight20 grams
Primary ColorBlack

Frequently Asked Questions

What is the operating voltage range for the MH-SR602 module?

The MH-SR602 module operates from a wide DC voltage range of 3.3V to 15V. This makes it compatible with common 3.3V and 5V microcontroller systems like Arduino, ESP32, and Raspberry Pi without requiring a level shifter.

How do I adjust the output delay time on this PIR sensor?

The output high-time delay is set by a surface-mount resistor on the PCB. The default is 2.5 seconds. To adjust it (up to 1 hour), you must desolder the existing resistor and replace it with one of a different value, as specified in the module's typical delay time resistance chart.

What microcontroller pin should I connect the output to?

Connect the module's digital output pin to any digital input pin on your microcontroller (e.g., Arduino). The output is active-high (3.3V logic level) when motion is detected. Ensure your microcontroller's input pin can safely read 3.3V logic if it's a 5V system.

Is this sensor suitable for battery-powered projects?

Yes, its extremely low quiescent current of 20 microamps makes it ideal for battery-powered or solar-operated projects where long-term, always-on sensing is required without quickly draining the power source.

Package Includes

  • 1 x MH-SR602 Mini PIR Motion Sensor Module

Additional Information

Weight 0.02 kg
Dimensions 1.5 × 1.5 × 2 cm