A
Anonymous
Apr 12, 2026
Rating: 5/5
Reliable sensor
Using it in a greenhouse project. Handles environmental changes well so far.
Description
GY-485-ALSV1 Light Intensity Module – 22 Years of Component Expertise
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Communication Protocol | RS485 (Modbus RTU) |
| Power Supply | DC 5V - 24V |
| Measurement Range | 0 - 200,000 Lux |
| Accuracy | ±5% |
| Response Time | < 1 Second |
| Operating Temperature | -20°C to 70°C |
| Interface Type | TTL / RS485 |
| Dimensions | 35mm x 25mm x 15mm |
| Weight | 12g |
| PCB Material | FR-4 |
5 reviews
A
Anonymous
Apr 07, 2026
Rating: 5/5
Accurate readings
Compared it with a professional lux meter and the values were very close. Happy with the precision.
A
Anonymous
Apr 05, 2026
Rating: 5/5
Fast shipping
Arrived well packaged. Tested immediately and it works as described in the listing.
A
Anonymous
Mar 13, 2026
Rating: 5/5
Great for industrial monitoring
Works perfectly with my PLC setup. RS485 communication is stable and reliable.
A
Anonymous
Mar 10, 2026
Rating: 4/5
Good value
Documentation could be better, but the hardware is solid and easy to integrate.
5 FAQ
Q: Can I connect multiple sensors to one bus?
A: Yes, RS485 supports multi-drop topology with unique addresses for each device.
Q: Does this support Modbus TCP?
A: No, this module supports Modbus RTU over RS485 only.
Q: Is calibration required out of the box?
A: The module is factory calibrated, but you can recalibrate via commands if needed.
Q: What is the maximum cable length?
A: For RS485, you can typically run up to 1200 meters depending on the environment.
Q: What is the pinout for the TTL interface?
A: Please refer to the datasheet included in the package for detailed pin mapping.
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