Carlo Gavazzi BSH-LUX-U Smart-Dupline lux sensor provides bus-powered ambient light measurement for indoor and outdoor building automation applications.
SKU:BSH-LUX-UAlt SKU:BSHLUXUMPN:BSH-LUX-U
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Why Choose the Carlo Gavazzi BSH-LUX-U Lux Sensor?
The Carlo Gavazzi BSH-LUX-U is a Smart-Dupline light intensity sensor designed for indoor and outdoor building automation applications. It measures ambient illumination and transmits the light-level value to a compatible Smart-Dupline controller, allowing lighting, shading and other automated functions to respond to changing daylight conditions.
With a measuring range of 0 to 20 kLux when connected to the SH2WEB24 platform, the BSH-LUX-U provides continuous light-level information for intelligent building-control functions. The sensor is powered directly from the Dupline bus, eliminating the need for a separate external power supply and helping simplify installation.
Designed for wall mounting, the BSH-LUX-U has a compact white housing and is suitable for both indoor and outdoor installation. Its IP44 protection rating and operating temperature range of -30 to +60 °C support use across a wide variety of building automation environments, while a yellow LED provides visual indication of correct Dupline bus operation.
Key Advantages
0 to 20 kLux measuring range with compatible SH2WEB24 Smart-Dupline systems.
Suitable for indoor and outdoor light-level measurement.
Bus-powered operation eliminates the need for a separate sensor power supply.
Integrates directly with Carlo Gavazzi Smart-Dupline building automation systems.
Provides light-level data for automated lighting and shading functions.
IP44 protection for suitable indoor and outdoor installations.
Integrated yellow LED provides convenient Dupline bus status indication.
Key Features
Smart-Dupline lux sensor.
Light intensity measurement for building automation.
0 to 20 kLux sensor range with SH2WEB24.
Indoor and outdoor installation capability.
Powered by the Dupline bus.
No separate external power supply required.
IP44 degree of protection.
Operating temperature from -30 to +60 °C.
Compact white wall-mount housing.
Yellow LED for Dupline bus indication.
Automatic identification through SIN when used with SH2WEB24.
Reliable Light Measurement for Smart Building Automation
Accurate ambient-light measurement allows building automation systems to adjust lighting and shading according to actual daylight conditions. The Carlo Gavazzi BSH-LUX-U supplies this information directly to the Smart-Dupline system, enabling the measured value to be incorporated into automatic lighting, blind, shutter and energy-management functions.
Because the sensor receives its operating power from the Dupline bus, installation requires fewer connections than a separately powered light sensor. When used with an SH2WEB24 controller, identification is handled through the sensor's Specific Identification Number, helping simplify system configuration and commissioning.
Typical Applications
Smart building lighting control systems.
Automatic daylight-dependent lighting control.
Roller blind and shutter automation.
Sunlight and solar shading control.
Commercial building automation.
Residential Smart-Dupline installations.
Energy-saving lighting strategies.
Indoor and outdoor ambient-light monitoring.
Technical Specifications
Manufacturer
Carlo Gavazzi
Model
BSH-LUX-U
Product type
Lux / light intensity sensor
System
Smart-Dupline
Application
Indoor and outdoor light-level measurement
Measuring range with SH2WEB24
0 to 20 kLux
Measuring range with BH8-CTRLX-230, Range A
5 to 5000 lux
Measuring range with BH8-CTRLX-230, Range B
3000 to 300000 lux
Power supply
Supplied by Dupline bus
Dupline voltage
8.2 V nominal
Maximum Dupline voltage
10 V
Minimum Dupline voltage
5.5 V
Maximum Dupline current
6.3 mA
Protection rating
IP44
Operating temperature
-30 to +60 °C
Storage temperature
-50 to +85 °C
Relative humidity
20 to 80% non-condensing
Housing dimensions
55 × 53 × 36 mm
Housing colour
White
Mounting
Wall mounting
Status indication
1 yellow Dupline LED
KNX
No
Frequently Asked Questions
What is the Carlo Gavazzi BSH-LUX-U used for?
The BSH-LUX-U is a Smart-Dupline lux sensor that measures ambient light intensity and transmits the measured value to a compatible building automation controller for lighting, shading and related control functions.
What is the measuring range of the BSH-LUX-U?
When connected to an SH2WEB24 controller, the BSH-LUX-U provides a measuring range of 0 to 20 kLux. Different ranges are available when it is used with the BH8-CTRLX-230 controller.
Does the BSH-LUX-U require a separate power supply?
No. The sensor is powered directly by the Dupline bus, so an additional external power supply is not required.
Can the Carlo Gavazzi BSH-LUX-U be installed outdoors?
Yes. Carlo Gavazzi specifies the BSH-LUX-U for indoor and outdoor installation. The sensor has an IP44 protection rating and an operating temperature range of -30 to +60 °C.
What building automation system does the BSH-LUX-U use?
The BSH-LUX-U is designed for the Carlo Gavazzi Smart-Dupline system and communicates its measured light-level information over the Dupline bus.
Trusted by Building Automation Professionals
Carlo Gavazzi Smart-Dupline sensors provide building automation engineers, system integrators and installers with distributed sensing solutions for intelligent lighting, environmental monitoring, shading and energy-management applications.
Manufacturer
Carlo Gavazzi
Model
BSH-LUX-U
Product type
Lux / light intensity sensor
System
Smart-Dupline
Application
Indoor and outdoor light-level measurement
Measuring range with SH2WEB24
0 to 20 kLux
Measuring range with BH8-CTRLX-230, Range A
5 to 5000 lux
Measuring range with BH8-CTRLX-230, Range B
3000 to 300000 lux
Power supply
Supplied by Dupline bus
Dupline voltage
8.2 V nominal
Maximum Dupline voltage
10 V
Minimum Dupline voltage
5.5 V
Maximum Dupline current
6.3 mA
Protection rating
IP44
Operating temperature
-30 to +60 °C
Storage temperature
-50 to +85 °C
Relative humidity
20 to 80% non-condensing
Housing dimensions
55 × 53 × 36 mm
Housing colour
White
Mounting
Wall mounting
Status indication
1 yellow Dupline LED
KNX
No
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Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...