Light Intensity Transmitter (Lux Sensor)

Industrial light intensity transmitter for building automation and energy-efficient control systems.

The MGZ10 Lux sensor measures ambient light levels and provides reliable analog outputs (4–20 mA, 0–10 V or 0–5 V) for integration with PLCs, controllers and VFD-based building automation systems. Ideal for daylight harvesting, indoor lighting control and energy optimisation applications.

Typical applications

  • Building automation systems (BMS)

  • Daylight harvesting and lighting control

  • Energy-efficient HVAC and lighting strategies

  • Industrial automation and production lines

  • Solar and environmental monitoring systems

Description

Light Intensity Transmitter for Building Automation & Energy Control

The MGZ10 Light Intensity Transmitter is an industrial-grade Lux sensor designed to measure ambient light levels accurately and reliably in building automation and energy management systems. It converts light intensity into standard analog signals, enabling seamless integration with PLCs, controllers, and VFD-controlled systems.

This transmitter is commonly used in daylight harvesting, automatic lighting control, and energy-efficient building systems, where lighting levels are adjusted based on available natural light. By providing stable and repeatable measurements, the MGZ10 supports optimized energy consumption and improved comfort in commercial and industrial buildings.

Encased in a wall-mounted, waterproof housing, the MGZ10 is suitable for both indoor and outdoor installations, including harsh environments. Its wide supply voltage range and multiple output options make it flexible for retrofits as well as new automation projects.


 

Features

  • Measures ambient light intensity in Lux

  • Wide measuring range up to 200,000 Lux

  • Analog output options: 4–20 mA, 0–10 V, 0–5 V

  • Wide power supply range 10–30 V DC

  • Wall-mounted waterproof industrial housing

  • Suitable for indoor and outdoor installations

  • Stable long-term performance for automation systems


Specification

Parameter Specification
Measurement range 0–60,000 Lux (standard), up to 0–200,000 Lux
Accuracy ±7% (at 25 °C)
Output signal 4–20 mA / 0–5 V / 0–10 V
Power supply 10–30 V DC (0–10 V version: 24 V DC)
Working temperature −40 °C to +60 °C
Working humidity 0–80% RH
Long-term stability ≤5% per year
Housing Wall-mounted, waterproof
Application environment Indoor and outdoor

 

FAQ

What is a light intensity transmitter used for?

A light intensity transmitter measures ambient light levels and converts them into standard electrical signals such as 4–20 mA or 0–10 V. These signals are used by controllers, PLCs, or building automation systems to regulate lighting, support daylight harvesting strategies, and optimize energy consumption in commercial and industrial buildings.


Can this light intensity transmitter be integrated into building automation systems?

Yes. The MGZ10 provides standard analog output signals that are widely supported by building management systems (BMS), PLCs, and automation controllers. It can be easily integrated into lighting control or energy management systems, including applications where VFDs are used as part of the overall building control strategy.


Is the MGZ10 suitable for indoor and outdoor installation?

Yes. The transmitter is housed in a wall-mounted, waterproof enclosure designed for reliable operation in both indoor and outdoor environments. Its robust construction allows it to operate in harsh conditions such as temperature variations and exposure to moisture.


What output signals are available?

The MGZ10 light intensity transmitter is available with multiple output options, including 4–20 mA, 0–10 V, and 0–5 V. This flexibility allows it to be matched easily with existing control systems and automation hardware.


What measuring range should I choose for my application?

For most building automation and indoor lighting control applications, the standard range up to 60,000 Lux is sufficient. For outdoor installations or applications with high natural light exposure, a higher range up to 200,000 Lux is recommended. If you are unsure, selecting the higher range provides additional flexibility.


How does this sensor support energy efficiency?

By measuring available natural light, the MGZ10 enables daylight harvesting strategies where artificial lighting is reduced when sufficient daylight is present. This helps lower energy consumption, reduce operating costs, and improve the overall efficiency of building systems.


Is this product suitable for industrial environments?

Yes. The MGZ10 is designed as an industrial-grade transmitter with stable long-term performance. It is suitable for use in industrial automation, production lines, and demanding building automation applications where reliable measurements are required.


What power supply is required?

The transmitter operates on a wide DC power supply range of 10–30 V. For versions with a 0–10 V output, a 24 V DC supply is typically used. This makes it compatible with most industrial and building automation power systems.


Does LONGVISTA provide technical support for integration?

Yes. LONGVISTA supports customers with application-oriented guidance to ensure correct sensor selection and integration into VFD-controlled and building automation systems. If you need assistance choosing the right output signal or measuring range, you can contact us for technical support.


Datasheet

Light Intensity Transmitter (Lux Sensor) MGZ10 – Datasheet