Photosensitive Sensor Module

LDR light sensor module with LM393 comparator, adjustable sensitivity and digital output for microcontrollers and relay switching.

✓LDR light intensity sensing
✓Adjustable detection sensitivity
✓Digital output to microcontroller
✓Drives relay modules directly
✓LM393 comparator on board

●In StockSKU: AS-B8RW48HE

💻 Product Overview

This is a light-sensing module built around an LDR and an LM393 comparator. It detects ambient brightness and switches its digital output when light crosses an adjustable threshold, so a microcontroller can read changes in light level. It is aimed at hobbyists and electronics builders putting together light-triggered projects.

✨ Key Features

Light detection: Uses an LDR to sense environmental light intensity.
Threshold switching: Outputs a low level below the set threshold and a high level once light intensity exceeds it.
Adjustable sensitivity: The signal detection sensitivity can be adjusted.
Microcontroller ready: The output connects directly to a microcontroller I/O port.
Relay driving: The small digital output can directly drive a relay module to form a photoelectric switch.
Comparator circuit: Includes a reserved line voltage comparison circuit.

🇱🇧 Why Buy from Technodel?

🚚 Delivery Across Lebanon — 1-3 business days to all regions
🛡️ Warranty — as stated on this product page, plus 30-day returns with a full refund
💬 WhatsApp Support — ask us anything before or after you order
💵 Cash on Delivery — pay when the order reaches you

🛒 Frequently Bought Together

🎯

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❓ Common Questions

Real questions customers ask about this product — delivery, warranty, payments & compatibility.

Is this product available in Lebanon?▾

Yes — it is available at Technodel with delivery across all of Lebanon: same-day to Beirut, Sour, Tripoli and surroundings, and 1–2 days to every other region.

Where does Technodel source this product?▾

Technodel sources from established suppliers in Lebanon. The product page states its condition and its warranty, and compatible parts are labelled as compatible.

What warranty comes with this product?▾

Warranty terms are stated on each product page. Where a manufacturer warranty applies, warranty support is handled through Technodel.

How can I pay for this product?▾

Technodel accepts cash on delivery, Wish Money transfer, and cryptocurrency (USDT, BTC, ETH). Delivery is a flat $4 anywhere in Lebanon, free on orders of $500 or more.

What are the main specifications of this product?▾

The specifications table on this page lists the key details (model, capacity/speed, dimensions, connectivity and more). If you need a detail not listed, message us on WhatsApp and we'll confirm it for you.

Is this product suitable for my setup?▾

If you're unsure whether this fits your laptop, PC, console or network, send us a message with your setup and we'll confirm compatibility before you order.

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