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LDR Module


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  • Stock: 25

    Availability: InStock priceValidUntil: 2026-06-28

  • Brand: Generic
  • SKU: 1997 | DAB011

Availability: InStock priceValidUntil: 2026-06-28

  • Rs. 33.04 (inc GST)
    Rs.28.00 + GST

    Qty :

GST Invoice: Available for all purchases; eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

Digital LDR Sensor Module

Digital LDR Module using LM393 comparator IC

This LM393 Photosensitive Light Dependent Sensor Module is using a high-quality LM393 voltage comparator. Easy to install using the sensitive type photosensitive resistance sensor the comparator output signal gives a clean and good waveform.

Driving ability is 15 mA with the adjustable potentiometer, it can adjust the brightness of the light detected. Working voltage is 3.3 Volt to 5 volt. Where output is digital switch output. Since this module is sensitive to the light, usually used for detecting the ambient brightness and light intensity.

When there is no light or the light intensity cannot reach the value, DO output is high level. When light intensity over than the value, the module DO output is low level. The module digital output DO can be directly connected to the microcontroller, use microcontroller detects high or low level, so that can detect the environmental light intensity change.

We have Various sizes of Sensor Modules. Check out our complete collection of Sensor Modules


If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

PIN Interfacing for LDR based Light Sensor Module

  • VCC : +ve power supply.
  • GND : Ground.
  • D0 : Digital output signal.
  • A0 : Analog Output Signal.

Features of Digital LDR Module

  • It comes with Mounting Hole Screw.
  • Easy to install
  • Signal output indicator light.
  • LDR module 4 PIN
  • Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment)
  • Output : DO digital switch output (0 and 1), AO analog voltage output Compatible with Arduino, Raspberry, and other microcontroller board.

Specifications of LM393 Photosensitive Light-Dependent Control Sensor Module

  • IC Chip : LM393
  • Input Voltage (V) : 3.3 to 5
  • Length (mm) : 15
  • Width (mm) : 33
  • Height (mm) : 8
  • Weight (gm) : 4

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Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

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Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
Do you offer same-day / next-day delivery in Nashik?
If feasible, yes. Send: item list + quantity + delivery PIN code, and we’ll confirm availability, courier option, and cost.
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
What if a product is out of stock — can you arrange it?
Yes — contact us with the part number and required quantity. We’ll check availability or sourcing options.
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Often yes — if the first order hasn’t shipped. Send both order numbers and we’ll confirm.
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