Lufft | Non Invasive Sensor | NIRS31-UMB for sale from Thomson Environmental Solutions

Lufft | Non Invasive Sensor | NIRS31-UMB

Supplier: Thomson Environmental Solutions

Lufft | Non Invasive Sensor | NIRS31-UMB

Non Invasive Sensor NIRS31-UMB is used for measuring surface conditions such as wetness, ice, snow or frost, water film height, friction and many more.

Application

An intelligent sensor which is part of the pole or part of bridge surpassing the motorway.
Mainly on bridges, which do not allow in all cases embedded sensors
The NIRS31-UMB is an alternative to Luffts IRS31-UMB.
Microclimates that need frequent asphalt reconstruction prefer non-invasive technology as well to reduce the maintenance costs.

Features

Fully integrated surface temperature measurement (pyrometer)
Electric Isolation of RS485 interface for network with other UMB sensors
Integrated microprocessors to identify all road and runway conditions.
Easy to mount - Firmware updates via UMB technology

Specifications

Dimensions

H. approx. 425 mm,

W. approx. 225mm,

D. approx. 285mm

Weight - 10 kg

Storage conditions

Ambient air temperature -40°C ... 70°C

Ambient rel. humidity < 95% RH, non condensing

Operating conditions

Operating voltage 24VDC ±10% (22 – 30VDC)

Power consumption Approx. 40VA

Temperature -40°C...60°C

Protection type IP65

Layer thickness

Water, Snow, Ice

Principle Optical

Measurement range 0...2mm (snow 0 ... 10mm)

Resolution 0.01mm

Surface temperature

Principle Pyrometer

Measurement range -40 ... 70 °C A

ccuracy ±0.8 °C

Resolution 0.1 °C

Surface conditions

Dry, Damp, Wet, Snow, Ice

Friction Measurement range 0...1 (critical ... dry)

Application

An intelligent sensor which is part of the pole or part of bridge surpassing the motorway.
Mainly on bridges, which do not allow in all cases embedded sensors
The NIRS31-UMB is an alternative to Luffts IRS31-UMB.
Microclimates that need frequent asphalt reconstruction prefer non-invasive technology as well to reduce the maintenance costs.

Features

Fully integrated surface temperature measurement (pyrometer)
Electric Isolation of RS485 interface for network with other UMB sensors
Integrated microprocessors to identify all road and runway conditions.
Easy to mount - Firmware updates via UMB technology

Specifications

Dimensions

H. approx. 425 mm,

W. approx. 225mm,

D. approx. 285mm

Weight - 10 kg

Storage conditions

Ambient air temperature -40°C ... 70°C

Ambient rel. humidity < 95% RH, non condensing

Operating conditions

Operating voltage 24VDC ±10% (22 – 30VDC)

Power consumption Approx. 40VA

Temperature -40°C...60°C

Protection type IP65

Layer thickness

Water, Snow, Ice

Principle Optical

Measurement range 0...2mm (snow 0 ... 10mm)

Resolution 0.01mm

Surface temperature

Principle Pyrometer

Measurement range -40 ... 70 °C A

ccuracy ±0.8 °C

Resolution 0.1 °C

Surface conditions

Dry, Damp, Wet, Snow, Ice

Friction Measurement range 0...1 (critical ... dry)

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AI Overview BETA

The Lufft NIRS31-UMB is a non-invasive sensor that measures road and runway surface conditions, including wetness, ice, snow, frost, water film height and friction. Its integrated microprocessors identify the road and runway conditions present, helping operators tell which surface condition the sensor has detected. Bridge sites where embedded sensors are not feasible in every case suit installation on a pole or bridge.

Pyrometer surface temperature range: -40°C to 70°C; accuracy ±0.8°C
Layer thickness range: 0–2 mm; snow 0–10 mm
Friction measurement range: 0–1, from critical to dry
Operating voltage: 24 VDC ±10%
IP65 protection

Source: listing by Thomson Environmental Solutions on IndustrySearch · Updated 31 Oct 2026

AI Overview is generated by artificial intelligence and may contain mistakes.

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