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The KERRO KWM-1 Whiteness Meter is a portable photoelectric instrument for measuring the whiteness/brightness of solid and non-metallic materials. It uses a D65 light source with R457 blue-light whiteness measurement geometry of 45°/0°, with a measurement range of 0–199.0 and LCD display.
Product Overview
The KERRO KWM-1 Portable Whiteness Meter is designed for objective measurement of the whiteness or brightness of a wide variety of materials. It operates on the photoelectric effect and uses a D65 light source with R457 blue-light whiteness measurement under a 45°/0° illumination condition.
The instrument is particularly suitable for flat surfaces and non-metallic materials including paper, cardboard, textiles, plastics, ceramics, powders, chemicals, detergents, flour and other white or near-white materials.
The KWM-1 features a compact handheld design, LCD display, high-precision optical system and calibration standards to support repeatable measurements in laboratory and industrial environments.
Key Features & Benefits
- Measurement range 0–199.0
- R457 blue-light whiteness measurement
- D65 light source
- 45°/0° illumination geometry
- 15 mm aperture
- LCD display
- Photoelectric measurement principle
- High-precision optical system
- Compact and portable design
- AC/DC power capability
- Low-voltage indication
- Black, white and brilliance calibration standards supplied
- Suitable for laboratory and industrial use
| Specification | Details |
|---|---|
| Model | KWM-1 |
| Product Type | Portable Whiteness Meter |
| Measurement Range | 0–199.0 |
| Measurement System | R457 Blue Light Whiteness |
| Light Source | D65 |
| Illumination Geometry | 45°/0° |
| Aperture Size | 15 mm |
| Display | LCD |
| Measurement Principle | Photoelectric effect |
| Minimum Readout | 0.1 |
| Basic Error | < ±1 |
| Repeatability | 0.2 |
| Zero Drift / Zero Error | < ±0.1 |
| Calibration | Calibration standard supplied |
| Calibration Standard | Black, white and brilliance standards |
| Power Supply | 5 × 1.5V AA alkaline batteries / AC 220V, 50Hz adapter |
| Low Voltage Indication | Yes |
| Operating Configuration | Portable / handheld |
| Suitable Samples | Solid and non-metallic materials; not intended for solution/liquid samples |
| Dimensions | Approx. 345 × 385 × 175 mm* |
| Weight | Approx. 3 kg* |
| Standards / Equivalence | ISO 2470 and ISO 3688 |
| Warranty | 1 year |
*Dimensions and weight are reported in secondary product specifications and may represent packaged or listing dimensions; confirm the supplied unit if exact physical dimensions are critical.
5. Applications
The KWM-1 can be used for whiteness and brightness measurement of:
- Paper
- Cardboard
- Cellulose
- Pulp
- Textiles
- Paint
- Enamel
- Plastic
- Porcelain
- Ceramics
- Cement
- Concrete
- Building materials
- Chemicals
- Powders
- Talc
- Starch
- Flour
- Salt
- Detergents
- Cosmetics
- Linen
6. Suitable For
- Paper manufacturing laboratories
- Textile laboratories
- Plastic manufacturing
- Ceramic industries
- Paint and coating industries
- Chemical laboratories
- Food-processing laboratories
- Detergent manufacturers
- Pharmaceutical raw-material testing
- Construction-material testing
- Quality-control laboratories
- Research and development laboratories
- Industrial inspection
7. Product Benefits
- Objective whiteness measurement: Provides an instrumental alternative to subjective visual assessment.
- R457 measurement: Uses the specified blue-light whiteness measurement system.
- D65 illumination: Provides controlled illumination for the measurement.
- Portable design: Suitable for laboratory and field/production use.
- 15 mm aperture: Provides a defined measurement area.
- Calibration standards: Black, white and brilliance standards support routine calibration.
- LCD display: Provides direct viewing of measurement results.
- High-precision optics: Designed for stable and repeatable measurements.
- Low-voltage indication: Helps identify when battery replacement is required.
- Broad material compatibility: Suitable for numerous paper, textile, plastic, ceramic, chemical and powder materials.
The KERRO KWM-1 Whiteness Meter is a portable photoelectric instrument for measuring the whiteness/brightness of solid and non-metallic materials. It uses a D65 light source with R457 blue-light whiteness measurement geometry of 45°/0°, with a measurement range of 0–199.0 and LCD display.
Product Overview
The KERRO KWM-1 Portable Whiteness Meter is designed for objective measurement of the whiteness or brightness of a wide variety of materials. It operates on the photoelectric effect and uses a D65 light source with R457 blue-light whiteness measurement under a 45°/0° illumination condition.
The instrument is particularly suitable for flat surfaces and non-metallic materials including paper, cardboard, textiles, plastics, ceramics, powders, chemicals, detergents, flour and other white or near-white materials.
The KWM-1 features a compact handheld design, LCD display, high-precision optical system and calibration standards to support repeatable measurements in laboratory and industrial environments.
Key Features & Benefits
- Measurement range 0–199.0
- R457 blue-light whiteness measurement
- D65 light source
- 45°/0° illumination geometry
- 15 mm aperture
- LCD display
- Photoelectric measurement principle
- High-precision optical system
- Compact and portable design
- AC/DC power capability
- Low-voltage indication
- Black, white and brilliance calibration standards supplied
- Suitable for laboratory and industrial use
| Specification | Details |
|---|---|
| Model | KWM-1 |
| Product Type | Portable Whiteness Meter |
| Measurement Range | 0–199.0 |
| Measurement System | R457 Blue Light Whiteness |
| Light Source | D65 |
| Illumination Geometry | 45°/0° |
| Aperture Size | 15 mm |
| Display | LCD |
| Measurement Principle | Photoelectric effect |
| Minimum Readout | 0.1 |
| Basic Error | < ±1 |
| Repeatability | 0.2 |
| Zero Drift / Zero Error | < ±0.1 |
| Calibration | Calibration standard supplied |
| Calibration Standard | Black, white and brilliance standards |
| Power Supply | 5 × 1.5V AA alkaline batteries / AC 220V, 50Hz adapter |
| Low Voltage Indication | Yes |
| Operating Configuration | Portable / handheld |
| Suitable Samples | Solid and non-metallic materials; not intended for solution/liquid samples |
| Dimensions | Approx. 345 × 385 × 175 mm* |
| Weight | Approx. 3 kg* |
| Standards / Equivalence | ISO 2470 and ISO 3688 |
| Warranty | 1 year |
*Dimensions and weight are reported in secondary product specifications and may represent packaged or listing dimensions; confirm the supplied unit if exact physical dimensions are critical.
5. Applications
The KWM-1 can be used for whiteness and brightness measurement of:
- Paper
- Cardboard
- Cellulose
- Pulp
- Textiles
- Paint
- Enamel
- Plastic
- Porcelain
- Ceramics
- Cement
- Concrete
- Building materials
- Chemicals
- Powders
- Talc
- Starch
- Flour
- Salt
- Detergents
- Cosmetics
- Linen
6. Suitable For
- Paper manufacturing laboratories
- Textile laboratories
- Plastic manufacturing
- Ceramic industries
- Paint and coating industries
- Chemical laboratories
- Food-processing laboratories
- Detergent manufacturers
- Pharmaceutical raw-material testing
- Construction-material testing
- Quality-control laboratories
- Research and development laboratories
- Industrial inspection
7. Product Benefits
- Objective whiteness measurement: Provides an instrumental alternative to subjective visual assessment.
- R457 measurement: Uses the specified blue-light whiteness measurement system.
- D65 illumination: Provides controlled illumination for the measurement.
- Portable design: Suitable for laboratory and field/production use.
- 15 mm aperture: Provides a defined measurement area.
- Calibration standards: Black, white and brilliance standards support routine calibration.
- LCD display: Provides direct viewing of measurement results.
- High-precision optics: Designed for stable and repeatable measurements.
- Low-voltage indication: Helps identify when battery replacement is required.
- Broad material compatibility: Suitable for numerous paper, textile, plastic, ceramic, chemical and powder materials.
- Regular price
- Rs.79,199.00
- Sale price
- Rs.47,199.00
GST Invoice included
(Save 18% on business purchases)
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Product Description
The KERRO KWM-1 Whiteness Meter is a portable photoelectric instrument for measuring the whiteness/brightness of solid and non-metallic materials. It uses a D65 light source with R457 blue-light whiteness measurement geometry of 45°/0°, with a measurement range of 0–199.0 and LCD display.
Product Overview
The KERRO KWM-1 Portable Whiteness Meter is designed for objective measurement of the whiteness or brightness of a wide variety of materials. It operates on the photoelectric effect and uses a D65 light source with R457 blue-light whiteness measurement under a 45°/0° illumination condition.
The instrument is particularly suitable for flat surfaces and non-metallic materials including paper, cardboard, textiles, plastics, ceramics, powders, chemicals, detergents, flour and other white or near-white materials.
The KWM-1 features a compact handheld design, LCD display, high-precision optical system and calibration standards to support repeatable measurements in laboratory and industrial environments.
Key Features & Benefits
- Measurement range 0–199.0
- R457 blue-light whiteness measurement
- D65 light source
- 45°/0° illumination geometry
- 15 mm aperture
- LCD display
- Photoelectric measurement principle
- High-precision optical system
- Compact and portable design
- AC/DC power capability
- Low-voltage indication
- Black, white and brilliance calibration standards supplied
- Suitable for laboratory and industrial use
| Specification | Details |
|---|---|
| Model | KWM-1 |
| Product Type | Portable Whiteness Meter |
| Measurement Range | 0–199.0 |
| Measurement System | R457 Blue Light Whiteness |
| Light Source | D65 |
| Illumination Geometry | 45°/0° |
| Aperture Size | 15 mm |
| Display | LCD |
| Measurement Principle | Photoelectric effect |
| Minimum Readout | 0.1 |
| Basic Error | < ±1 |
| Repeatability | 0.2 |
| Zero Drift / Zero Error | < ±0.1 |
| Calibration | Calibration standard supplied |
| Calibration Standard | Black, white and brilliance standards |
| Power Supply | 5 × 1.5V AA alkaline batteries / AC 220V, 50Hz adapter |
| Low Voltage Indication | Yes |
| Operating Configuration | Portable / handheld |
| Suitable Samples | Solid and non-metallic materials; not intended for solution/liquid samples |
| Dimensions | Approx. 345 × 385 × 175 mm* |
| Weight | Approx. 3 kg* |
| Standards / Equivalence | ISO 2470 and ISO 3688 |
| Warranty | 1 year |
*Dimensions and weight are reported in secondary product specifications and may represent packaged or listing dimensions; confirm the supplied unit if exact physical dimensions are critical.
5. Applications
The KWM-1 can be used for whiteness and brightness measurement of:
- Paper
- Cardboard
- Cellulose
- Pulp
- Textiles
- Paint
- Enamel
- Plastic
- Porcelain
- Ceramics
- Cement
- Concrete
- Building materials
- Chemicals
- Powders
- Talc
- Starch
- Flour
- Salt
- Detergents
- Cosmetics
- Linen
6. Suitable For
- Paper manufacturing laboratories
- Textile laboratories
- Plastic manufacturing
- Ceramic industries
- Paint and coating industries
- Chemical laboratories
- Food-processing laboratories
- Detergent manufacturers
- Pharmaceutical raw-material testing
- Construction-material testing
- Quality-control laboratories
- Research and development laboratories
- Industrial inspection
7. Product Benefits
- Objective whiteness measurement: Provides an instrumental alternative to subjective visual assessment.
- R457 measurement: Uses the specified blue-light whiteness measurement system.
- D65 illumination: Provides controlled illumination for the measurement.
- Portable design: Suitable for laboratory and field/production use.
- 15 mm aperture: Provides a defined measurement area.
- Calibration standards: Black, white and brilliance standards support routine calibration.
- LCD display: Provides direct viewing of measurement results.
- High-precision optics: Designed for stable and repeatable measurements.
- Low-voltage indication: Helps identify when battery replacement is required.
- Broad material compatibility: Suitable for numerous paper, textile, plastic, ceramic, chemical and powder materials.
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