---
title: luxSensor
description: "**What is the luxSensor used for?** The luxSensor measures light intensity and enables devices to be controlled automatically depending on the light level. **What is the measurement range and accuracy of the luxSensor?** The luxSensor measures illuminance within a range…"
url: "https://faq.blebox.eu/en/docs/luxsensor/"
updated: "2026-09-25"
category: "Wi-Fi controllers"
---

# luxSensor

**What is the luxSensor used for?**
The luxSensor measures light intensity and enables devices to be controlled automatically depending on the light level.

**What is the measurement range and accuracy of the luxSensor?**
The luxSensor measures illuminance within a range of 0–50,000 lx. The measurement resolution is 0.1 lx (0–10 lx) and 1 lx (10–50,000 lx), whilst the measurement accuracy is ±15 per cent.

**How do you power the luxSensor?**
The luxSensor can be powered via a USB-A plug (5V DC). It is also possible to power it from an external 5–24 V DC power supply, although this requires cutting the factory-fitted USB cable and connecting the power leads directly to the power source. Cutting the plug does not invalidate the warranty.

**What can the luxSensor control, and how? Examples of applications.**
The luxSensor can wirelessly control up to 30 other BleBox devices, automatically opening or closing awnings, shutters, roller blinds or windows when there is strong sunlight. When connected to a shutterBox controller, it enables full automation of room shading on sunny days.
In conjunction with a switchBox controller, it is possible to automatically switch on lighting, for example in a greenhouse or to illuminate a driveway.

**What is the operating temperature range of the LuxSensor?**
The LuxSensor controller can operate within a temperature range of -20°C to +50°C. This is the operating temperature range of the entire controller, which ensures reliable operation of the device both in extreme cold and during the summer heat.

**Is it possible to view the sunlight history using luxSensor?**
Yes, the controllers offer full data history and interactive chart functionality. To use this feature, the controller must be connected to a Wi-Fi network. Measurement data is stored on the servers for one year, and for archiving purposes, it can be exported to .csv and .xlsx formats.

![](https://faq.blebox.eu/wp-content/uploads/2026/09/image-14.png)

The data recording interval varies depending on the time period: for data from the last week, the interval is 5 minutes; for data from the last month, it is one hour; and after one month, data is recorded at one-day intervals.

![](https://faq.blebox.eu/wp-content/uploads/2026/09/image-15.png)