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Home  >>  Products  >>  Color/Gloss  >>  RF Novo-Gloss Glossmeters
RF Novo-Gloss Glossmeters

RF Single, Dual and Trigloss

ISO 2813, 7668; ASTM D523, D2457, (D4039, E430 - GL-223301 Only); DIN 67530; JIS 8741

Statistical Novo Gloss

Gloss measurements are fully compatible with existing Novo-Gloss Lite and Micro-TRI-gloss results. Single 60°, Dualgloss 20/60° or Trigloss 20/60/85° versions are for maximum accuracy and resolution in all gloss applications.




Fast measurement of all parameters. Full on-board statistics with graphical trend analysis and reporting. Simultaneous measurement of all parameters, results are data and time stamped. Displays full statistics for the number of readings in the current batch.

Trigloss Statistics
Easy Batching
User definable batch names and batch sizes for quicker and more efficient reporting. Graphical reporting for quick trend analysis.

Graph Batching
Rapid data transfer
Software-free data transfer, USB connection to PC instantly recognizes the device as a drive location which facilitates the quick transfer of files using Windows Explorer or similar.

Direct data input via Bluetooth
Instantly transmit measured readings directly to programs such as MS Excel on your PC / tablet / smartphone to greatly simplify the reporting process.

Data Via Bluetooth
  1 2 3 4 5 6
20° 30.8
32.3 28.4 35.1 34.6 28
60° 70.1 71.8 68.3 73.8 73.2 68.3
85° 88.9 89.1 87.8 90.4 90.4 87.5
Calibrated 22/02/2013 22/02/2013 22/02/2013 22/02/2013 22/02/2013 22/02/2013
Serviced 19/02/2013 19/02/2013 19/02/2013 19/02/2013 19/02/2013 19/02/2013
S/N 2000728 2000728 2000728 2000728 2000728 2000728
Each instrument is supplied conforming to all the standards in regular text for the corresponding angle. Instruments conforming to the standards in italics are available on request. Standards may be mixed on multi-angle instruments


10,000+ readings per charge. The instrument is rechargeable via USB/PC or mains and can be used while charging.


Technical Data

Technical Data
Gloss 60°, 20/60° or 20/60/85°* versions available
20° Improved accuracy and resolution on high-gloss & metallic samples (>70GU when measured at 60°)
60° Universal angle - all gloss levels
85° Improved Resolution for matt finishes (<10GU when measured at 60°)
Resolution: 0.1 GU
Repeatability: ±0.2 GU
Reproducibility: ±0.5 GU
Measurement Range: 20°: 0-2000GU
60°: 0-1000GU
85°: 0-199GU
Standards: ISO 2813, ISO 7668, ASTM D 523, D 2457; DIN 67530, JIS 8741
* Verified performance on 20° angle for 20/60/85°
Gloss Calibration Standard
Traceability: ISO 17025 Certified, BAM Traceable
Uncertainty: 1.1 GU
Instrument Specification Operation
• Full color easy to read screen
• 6 button touch sensitive interface
• Adjustable brightness
• Integrated calibration holder with in position detector for error-free calibration
• Single button push to measure all parameters
• Fast measurement
• Results batching with user definable names
Statistical Analysis
• Max, Min, Mean, S.D.
• All measured Parameters
Graphical Analysis
• On board trend analysis
• Gloss values
• Rechargeable lithium ion
• 17+ Hours operation
• 10,000+ readings per charge
Operate from
• Internal battery/USB/mains charger
Recharge Time
• Mains powered USB charger < 4
• 8 MB - >2000 Readings
• User definable alphanumeric batching
Data Transfer
• Bluetooth
• PC
• USB Connection, no software install required
Measurement Area
• 20° 6mm x 6.4mm
• 60° 6mm x 12mm
• 85° 4mm x 45.9mm
Operating Temperature
60 - 104°F (15 - 40°C)
Up to 85%, Non-condensing
Dimensions & Weight
• 65mm(H) x 140mm(W) x 50mm(D)
• 60° & 20/60° = 390g, 20/60/85°= 530g


Sample Applications



Why Measure Gloss?


Gloss is an aspect of the visual perception of objects that is as important as color when considering the psychological impact of products on a consumer. It has been defined as 'The attribute of surfaces that causes them to have shiny or lustrous, metallic appearance.'

The gloss of a surface can be greatly influenced by a number of factors, for example the smoothness achieved during polishing, the amount and type of coating applied or the quality of the substrate. Manufacturers design their products to have maximum appeal: highly reflective car body panels, gloss magazine covers or satin black designer furniture.

Gloss Appearance

It is important therefore that gloss levels are achieved consistently on every product or across different batches of products.

Gloss can also be a measure of the quality of the surface, for instance a drop in the gloss of a coated surface may indicate problems with its cure, leading to other failures such as poor adhesion or lack of protection for the coated surface.

It is for these reasons that many manufacturing industries monitor the gloss of their products, from cars, printing and furniture to food, pharmaceuticals and consumer electronics.

How Is Gloss Measured?
Gloss is measured by shining a known amount of light at a surface and quantifying the reflectance. The
angle of the light and the method by which the reflectance is measured are determined by surface and
also aspect of the surface appearance to be measured.

Which Angle Should I Use For My Application?
ISO 2813 and ASTM D523 (the most commonly used standards) describe three measurement angles to measure gloss across all surfaces.

Gloss is measured in gloss units (GU) and is traceable to reference standards held at BAM (Germany), NRC (Canada) or NPL (UK).

Which Angle
Universal Measurement Angle: 60°
All gloss levels can be measured using the standard measurement angle of 60°. This is used as the reference angle with the complimentary angles of 85° and 20° often used for low and high gloss levels respectively.
Low Gloss: 85°
For improved resolution of low gloss a grazing angle of 85° is used to measure the surface. This angle is recommended for surfaces which measure less than 10GU when measured at 60°. This angle also has a larger measurement spot which will average out differences in the gloss of textured or slightly uneven surfaces.
High Gloss: 20°
The acute measurement angle of 20° gives improved resolution for high gloss surfaces. Surfaces that measure 70GU and above at the standard angle of 60° are often measured with this geometry. The 20° angle is more sensitive to haze effects that affect the appearance of a surface. To quantify haze, distinctness of image, reflected image quality and other surface texturing please consider the Rhopoint IQ - click here.



Haze is light that has been reflected by small surface structures adjacent to the main specular component. Haze
Haze α Haze reflectance

Reflectance Haze - An optical effect caused by microscopic texture or residue on a surface.

Reflection Haze
Reflection haze is an optical phenomenon usually associated with high gloss surfaces. It is a common surface fault that reduces appearance quality. A hazy surface has a visibly shallower reflection with a milky finish and halos appear around reflections of strong light sources.
Sample 1- No Haze, deep reflection Sample 2- High Haze, “shallow� finish

A high gloss finish with haze exhibits a milky finish with low reflective contrastreflected highlights and lowlights are less pronounced.

On surfaces with haze, halos are visible around the reflections of strong light sources.
Sample 3- Low Haze Sample 4- Higher Haze


Causes of Haze

Coating & Raw Materials Hazes
  • Dispersion
  • Pigment properties
  • Particle size
  • Binder compatibility
  • Influence and migration of additives
  • Resin types and quality
  • Drying conditions
  • Cure temperature
Post Coating
  • Polishing marks
  • Cleanliness
  • Ageing and oxidization


Gloss & Haze Measurement w/Array Technology

The Novo-Gloss uses a 512 element linear diode array which profiles reflected light in a large arc from 14° to 27°. The instrument processes this high resolution data, selecting individual elements within the array that equate to the angular tolerances outlined in international measurement standards. In a single 20° measurement, the following calculations are made:
Gloss =

Σ Pixels between 20°±0.9° (sample)

Σ Pixels between 20°±0.9° (standard)

Haze = 100*

Σ Pixels from 17° to 19° (sample)+
Σ Pixels from 21° to 23° (sample)

Specular Gloss (Standard)

logHaze =



Auto Adjustment on Curved Surfaces


A major advantage of the Novo-Gloss is that it automatically compensates for curved or textured sample surfaces by virtually adjusting the measurement position. Conventional gloss-hazemeters have fixed optics which can make measurement unreliable as any sample curvature will reflect light away from the center of the measurement sensor causing errors.

Haze Curve

The Novo-Gloss automatically adjusts the sensor position by detecting the peak of the reflected light. The laws of reflection state that the incident angle is equal to the reflection angle thus the peak equates exactly to the 20° gloss angle.

The Novo-Gloss automatically adjusts for nonflat surfaces by sensing the reflected peak and virtually adjusting the position of the sensor.


Diffuse Corrected Haze w/Array Technology

Reflection haze is caused by micro texture on a surface which causes a small amount of light to be reflected colors and metallics, a certain amount of diffuse light, reflected from within the material, is also present in this region. This diffuse light exaggerates the haze signal for these surfaces causing higher than expected readings.
The Novo-Gloss compensates for reflection from within the coating for highly reflective pigments, metallic coatings and speciality pigments, allowing the haze of any painted surface to be measured. Haze Curve


Corrected Haze on Metallic Coatings


For non metallic surfaces, the diffuse component is Lambertian: It is equal in amplitude at all angles in relation to the sample surface. Conventional glosshazemeters measure diffuse reflection using a luminosity sensor positioned away from the gloss angle. Luminosity is subtracted from the haze signal allowing non metallic surfaces to be measured independently of their color.

Goniophotometric information profiling the reflection from white, grey and black panels with an identical topcoat.

Haze Curve

An advantage of the Novo-Gloss is that unlike a conventional instrument, compensation is calculated using a region adjacent to the haze angle. This technique gives compatible readings on solid colors but also compensates for directional reflection from metallic coatings and speciality pigments.

The Novo-Gloss captures compensation information from a region adjacent to the haze measurement angle. This means it can be used on metallic coatings which reflect light directionally.

Haze measurements made by instruments which do not conform to ASTM E430 and conform to standards such as ASTM D4039 do NOT feature haze compensation due to the measurement method used.

Haze Measurement




For more helpful videos on the Rhopoint Gloss Meters bluetooth interface, how to use it and customize batches, as well as a videos on the best practices and calibration guides... click this link.


Competitive Pricing


Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices
Trade-in a broken or outdated gloss meter, any style or brand, and get 10% off of a brand new Novo-Gloss RF Series meter.

The instrument is supplied as a standard package complete with all accessories required to calibrate and recharge the unit including: Rhopoint Novo-Gloss 60°, 20/60° or 20/60/85° Glossmeter, High gloss calibration tile including certificate, Cleaning cloth for calibration tile, BAM traceable instrument certificate, USB Mains Charger with four selectable mains input connectors (UK / Europe / US / Australia), USB PC cable, Quick Start Operating Instructions, Protective instrument carry case and 2 Year Warranty
GL-223101 Rhopoint Novo-Gloss RF Single 60° Glossmeter $1,596.00
GL-223201 Rhopoint Novo-Gloss RF Dual 20/60° Glossmeter 2,372.00
GL-223301 Rhopoint Novo-Gloss Trigloss Gloss and Haze meter (ASTM D4039, E430) 3,339.00
GL-224041 Charger for Glossmeter 145.00
Calibration Standard Replacement
GL-224007 60° Calibration Standard Replacement 398.00
GL-224008 60°/20° Calibration Standard Replacement 398.00
GL-224009 60°/20°/85° Calibration Standard Replacement 398.00
Note: Special Calibration Standards available upon request.
We are an established North American Distributor for Rhopoint Instruments, and have been providing, servicing, calibrating and certifying their high quality instruments for over 33 years.


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