*MIZA TrHz-33 Haze, Transmittance + Color

MIZA TrHz-33 Transmission Haze & Color Meter   "Advanced Model"

The THz-33 is a 3-in-1 Transmission HAZE & Color Meter and is our Advanced model with a three-year warranty designed with superior accuracy and simplicity in mind. This instrument was meant for a discerning audience who require a better than entry-level instrument yet has more value than the older traditional instruments costing 2X or more. This instrument's accuracy and repeatability specifications rival the more expensive designs from Europe at 2X the price. The TrHz-33 can easily be used for both vertical and horizontal positions depending on its use by the operator with no required modifications. The design is sleek and has the latest advancements in optics to perform as a Spectrophotometer and Haze and Transmittance instrument. Thus, the MIZA TrHz-33 Transmission HAZE Color meter model is a special instrument with three measurement capabilities, namely; Transmission, Haze & Color. The TrHz-22, our entry-level,  only has Transmission and Haze, while our TrHz-55 has everything the TrHz-33 has plus a Clarity measurement.

Definition: Transparency

Transparency is a vague description of a material's characteristic of its see-through capability or clearness of the medium, for both liquids and solids. Different products applications require different solutions. Packaging for a meat product in a grocery store should be extra clear or transparent, while plastic bags are semi-opaque to keep their contents private. Transparency involves the combination of reflection, transmission, and absorption of the translucent material. Another characteristic also visible to the human eye is the haziness or cloudiness of a material. Haziness or HAZE can be characterized by the scattering of light. Scattering is also divided into Narrow and Wide-angle scattering. The TrHz-33 haze meter measures the latter or wide-angle scattering. Wide-angle scattering occurs at >2.5° from the perpendicular to the material. ASTM D 1003 and ISO 13468 measurement methods present different measurements. Note this instrument measures liquid's haze and transmittance in a horizontal position.

Standard: ASTM D1003

ASTM D1003 refers to two test procedures that cover the evaluation of specific light-transmitting and wide-angle scattering properties. The two test methods under ASTM are Test Method A and B. Test Method A uses a Haze meter while Test Method B uses a spectrophotometer. The better and more accurate test method is A which uses a Haze Meter. These results offer slightly better values and have greater repeatability. The MIZA Model TrHz-33 uses the total hemispherical luminous transmittance. This is accomplished by placing the planar product against the entrance port of the sphere which we call the "Haze Port". ASTM D 1003 uses illuminants A and C while ISO 13468 uses Illuminant D65.

Quality Control personnel use these Haze meters to standardize the quality for product specification purposes.

The MIZA Transmission HAZE TrHz-33 Meter by Imbotec easily measures all translucent materials. These include plastic packaging film, clear PVC, Liquids, LCD panels, glass, and more.

The TrHz-33 comes standard with a 21mm opening Aperture and a measurement spot of 16.5mm in diameter. Optionally we also have apertures of 10mm, 7mm, and a 5mm aperture for smaller or minimally curved surfaces.

If Clarity is required, check out our TrHz-55.

We also have a model for VERY small objects and for curved or tubular/cylindrical translucent products, "TrHz-77". This haze meter is a specialized model with slit openings of either a 1 or 2mm wide x 21mm long aperture opening. Custom measurement sizes are available upon request. Small apertures are used to measure curved samples like a fluorescent tube as an example.


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  • Comparison of Haze Meters
  • DataSheet
  • Technical Specifications
  • White Paper of MIZA vs. Rhopoint NovoHaze Results



Features & Advantages with the MIZA TrHz-33

  • Simultaneous Transmission and Haze measurements
  • One step Calibration
  • Longest Industry Warranty of three years.
  • Conforms to international standards ASTM D 1003, ASTM D1044, ISO 13468, ISO 14782, JIS K 7361, and JIS K 7136.
  • Uses all three standard illuminants: A, C, and D65 for HAZE and Total Transmittance measurement.
  • The TrHz-33 transmission instrument also measures using the transmittance compensation measurement method offering a higher accuracy result.
  • Ambient light has no effect on the measurement.
  • The open measurement area offers no limitations on sample thickness size.
  • Easy and quick positioning of samples for maximum throughput.
  • The TrHz-33 utilizes a large 5" Touch Screen Display for an easy to read interface.
  • The Transmission Haze instrument can be used in either horizontal or vertical mode to take measurements.
  • Small Compact Footprint minimizes benchtop space.
  • A five (5) year warranty for Superior reliability with a stable high quality LED light source.
  • Fast 3-secondTransmission and Haze measurements are standard.
  • Sales, Service, Warranty & Repair done here in North America.
  • Slim & Sleek Efficient low footprint Design.
  • More Accurate and Precise than competitive instruments.
  • Best Value and Maximum Affordability guarantees the best value on the market.
  • Low Initial Cost & Lowest Cost of Ownership over the years.
  • Free - onsite SETUP and TRAINING at customer location in Mainland North America for one day INCLUDED for FREE. (approx. value $3k) "Pre Covid", now with reduced price, support is online.
  • Advanced optical measurement sensor using a spectrometer.
  • An Easy Decision.


Box Contains

Comes Complete with:

  • Transmission HAZE Meter TrHz-33
  • Calibration Standard
  • With the purchase of one set of 5 checking standards, you get both sets of Transmission & HAZE Standards when the more expensive set is purchased.
  • Compensation Port Cover
  • Sample Holder
  • Certificate of Quality and Conformance
  • USB Cable
  • Software
  • A True Native English User Manual
  • Setup at Customer location (Post Covid once again)
  • Training at Customer location (Post Covid once again)
  • Warranty Instrument: 3 Years
  • Warranty Lamp: 5 Years based on 1hr/day


MIZA Transmission & Haze Standards

  • ASTM D1003, ASTM D1044  ASTM Link
  • ISO 13468, ISO 14782


Haze ASTM D1003 Standards

  Haze Standards (5 in Set)

ASTM D1003 states that Haze Standards are required for periodic verification of accuracy.


Transmission Haze Materials Measured

This instrument was designed as a direct response to laboratory requirements, thus the TrHz-33 was developed to measure liquids, films and thin sheet products quickly and easily - use the Thin Film Sample Holder. Just lay the sample on our aperture ring and place the larger ring over it to create a taught firm sample on the measurement surface and press the measurement button.

  • Plastic film
  • Acetate
  • Polyester film
  • Mylar
  • Vinyl film
  • Glass (Thin)
  • Colored film
  • Dark film


Haze Glass samples   Plexiglass Haze Sample   Haze Plexiglass plastic sample

What is Transmission Haze?

Transmission Haze is a measurement of the light scattering characteristics of a material. Haze can be due to suspended particles or contaminants within a sample or fine surface texture & contamination. Haze is measured in percent. Haze is calculated by dividing the Diffuse Transmission by the Total Transmission in percentage. Normally CIE Illuminant C is used for these calculations.

Haze measurement can be used to quantify the optical characteristics of plastics and packaging films.

meat-with-hazy-packaging   haze film sample


In packaging applications hazy films may reduce a consumer's quality perception as packaged products with haze-affected films can look cloudy and indistinct.

For plastics with haze, the visibility of the test material becomes more apparent and the contrast of viewed objects is reduced.



  • Five Years Lamp Warranty
  • THREE Years on the full Instrument. Accessories not included.
  • Longest Warranty on a Haze Meter in the Industry!


    Accessories SKU #

    Transmission Checking Standards 
    4 pcs set 

    Transmission Standard 30%
    Transmission Standard 50%
    Transmission Standard 70%
    Transmission Standard 90%
    Haze Checking Standards 
    5 pcs set  
    Haze Standard 1HU  
    Haze Standard 5HU  
    Haze Standard 11HU  
    Haze Standard 19HU  
    Haze Standard 30HU  
    Sample Holder 
    Thin-Film Sample Holder 
    5mm Haze Aperture
    7mm Haze Aperture
    10mm Haze Aperture
    Cuvette Table
    Cuvette for Liquids 10mm light path, 

    Cuvette Cell 64mm Dia. X 40mm H

    Spare Parts Available

    Spare Part SKU #
    USB Cable SV-50440
    LED Light SV-50480
    AC Adapter (24V/2A) SV-50470
    User Manual (pdf) **confirmation needed** SV-50410
    Haze Port Cover SV-50450
    Copy of a Certificate SV-50520





      MIZA Transmission HAZE MeterTrHz-33


      CIE-A (ASTM D1003), CIE-C, CIE-D65 (ISO 13468, ISO 14782)

      Spectral Response

      CIE Luminosity function y (λ)


      Spectrometer (higher accuracy)


      0° / diffuse

      Measurement Area

      16.5mm (5/8")

      Sample Port

      21mm (13/16")

      Sample Thickness

      145mm (511/16")

      Measurement Range

      0 - 100%

      HAZE Repeatability

      ±0.01 units

      Transmission Repeatability

      ±0.01 units

      HAZE Resolution

      0.01 units


      20,000 readings



      Power Supply

      120V / 60Hz

      Operating Temperature

      10-40°C (50-104°F)

      Storage Temperature

      0-50°C (32-122°F)


      310 x 215 x 540 mm (123/16x 87/16x 211/4)


      ASTM D1003, D1044, ISO 13468, ISO 14782, JIS K 7361, JIS K 7136


      3 Years for Instrument, 5 Years for lamp


      Color, HAZE, Transmittance


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