Huidu HD-S108 sensor box for LED displays
The HD-S108 combines temperature, humidity, ambient light sensing and remote control in one accessory for an LED display control system. It can show environmental readings on the screen and adjust screen brightness as surrounding light changes.
Technical specifications
Values below follow the linked HD-S108 specification V2.0. Measurement limits and operating limits are listed separately.
| Functions | Temperature, humidity, ambient brightness sensing and remote control |
|---|---|
| Temperature measurement range | −40°C to 123.8°C |
| Humidity measurement range | 0–100% RH |
| LED brightness adjustment | 1–100% |
| Operating temperature | −40°C to 85°C |
| Standard cable length | 1500 mm |
| Sensitivity / sampling | High, medium and low; PDF lists 5s / 10s / 15 (final unit omitted) |
| Connection | Serial connector to S108; three-in-one interface for player box / older control-card connections |
The sampling row in the PDF omits the unit after the final “15”; confirm the low-sensitivity interval if it is critical to your application.
Installation and status checks
Connect the box using the matching sensor cable and control-system interface. The running indicator flashes during operation and when receiving a remote command. If it remains off, the document recommends checking the cable connection and orientation.

HD-S108 frequently asked questions
What does the Huidu HD-S108 sensor box do?
It measures ambient temperature and humidity for display on an LED screen, senses surrounding light for automatic screen brightness adjustment, and receives remote-control commands.
Can HD-S108 adjust LED screen brightness automatically?
Yes. The specification describes automatic brightness adjustment in response to ambient light, with a screen brightness adjustment range of 1–100%. This percentage is not an illuminance measurement in lux.
What are its measurement and operating temperature limits?
The temperature measurement range is −40°C to 123.8°C, while the specified operating environment is −40°C to 85°C. A measurement range does not extend the permitted operating temperature.
Which remote-control functions are supported?
The document lists program selection, pause and playback, screen on/off, brightness adjustment and screen testing. Confirm the remote and controller configuration supplied for your installation.
Will it connect to my Huidu control card?
The PDF shows a serial connector for the S108 box and a three-in-one interface intended for player boxes and older control cards. It does not provide a complete model compatibility list; check your exact controller and cable before ordering.


Reviews
There are no reviews yet.