Posted in | Thermal Analysis

ML4000 LIX/UV Light Measurement Radio Transmitters

The ML4000LUX/UV Series of radio transmitters from Hanwell have a discreet design and provide accurate light (LUX) and Ultra Violet (UV) measurements.

Light (LUX) and Ultra Violet (UV) Monitoring

With the ML4000LUX/UV series of radio transmitters, users can perform light (LUX) and ultraviolet (UV) measurements using highly accurate sensors. The ML4000 series of light and UV radio transmitters are a range of sophisticated technology, enabling 24/7 site monitoring with instant alarm notification of breach to pre-set boundaries and historical data analysis.

The proportion of UV present (µW/Lumen), the amount of visible light LUX), and the total amount of UV (mW/ M2) can be measured.

LUX is measured in the range of 10 to 5000 LUX, which is adequate for environments where a LUX level of more than 600 is not usually required, though higher ranges can be delivered upon request. 20 to 2000 µW/Lumen is the UV range.

Locations LUX requirements*
Sensitive materials such as prints, drawings, watercolors, dyed fabrics, manuscripts, and botanical specimens 50-100
Oil paintings, some photographs, ivory, wood and lacquer objects 150
Metal, stone, glass, ceramic and enamel objects Generally are thought to be unaffected by strong light, but the heat from lights can be affected. See our ML 4000RFT series datasheet.

*These are a guideline only, users are asked to determine their own LUX recommendations as heritage pieces vary in the state depending on their age and condition.

Product Features

  • High-performance technology with accurate connecting sensors
  • A memory capacity of 100,000 readings
  • Unparalleled low power radio for long-distance transmission (over 3 km over open ground)
  • British made design and manufactured
  • Slots in back of the unit for wall brackets
  • User accessible battery and USB socket
  • Carries CE Marking
  • Complies with EU, RoHS, and WEEE directives


  • Reduce the destructive effects of UV on organic materials
  • Minimize damage caused by artificial and natural light and UV on objects
  • UV and light products can be easily incorporated into an existing Hanwell system
  • Generate the optimum light and UV surroundings for all artifacts
  • Save time and money previously used to restore objects damaged by UV and light
  • Support British engineering and manufacturing industries

Radio Transmitter Functions

  • Radio Range: 3 km over open ground
  • Radio Power: 10 mW
  • Frequency Options: A range of frequencies are available between 433 and 458 MHz. Country specific regulations apply.
  • Battery Life: Up to 18 months

This product can be calibrated to customers’ specifications.

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