LDR Photoresistor Light Sensor Module
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | Photo-resistor LDR Light Sensor Module | 20 EGP | View in store |
| Ekostra | LDR Photoresistor Light Sensor Module 3-Pin | 30 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 20 EGP
About this product
A light sensor module built around an LDR photoresistor, whose resistance decreases as light intensity increases. It is used to detect ambient brightness in projects such as automatic night lights, lighting control and light-level monitoring. The output changes with the amount of light falling on the sensor.
Specifications
- Sensor type
- LDR photoresistor
- Behavior
- Resistance decreases as light increases
- Application
- Ambient brightness detection
Frequently asked questions
What is the price of LDR Photoresistor Light Sensor Module in Egypt?
LDR Photoresistor Light Sensor Module currently costs between 20 and 30 EGP across 2 offers in Egypt.
Where can I buy LDR Photoresistor Light Sensor Module in Egypt?
LDR Photoresistor Light Sensor Module is available from Makers Electronics and Ekostra. Compare the offers above to find the best price.
How do I read this module with an Arduino?
Check the silkscreen on your module first. Modules of this type usually have an analog output read with analogRead(), and some also have a digital output with a threshold potentiometer.
Why does the reading go down when the light gets brighter?
The LDR resistance drops as light increases. In a voltage divider, this lowers or raises the output voltage depending on how the LDR is wired, so check the module's wiring before interpreting values.
