▸Description
CHNSpec CT-23/25 Portable UV, Visible & IR Transmittance Testers
Available Models
CT-23 – Standard UV, Visible & IR Tester: Measures transmittance at three wavelengths: UV (365 nm), visible light (530 nm) and infrared (940 nm). Ideal for routine testing of window films, glass and transparent materials.
CT-25 – Advanced Five-Index Transmittance Tester: Measures UV (365 nm), visible light (530 nm), IR (940 nm and 1400 nm), plus visible light transmittance across 380–760 nm using the CIE photopic response. Recommended for more comprehensive solar film and optical glass testing.
Key Features
- UV, Visible & IR Measurement: Evaluates light transmission through glass, films and transparent materials.
- Three or Five Measurement Indices: CT-23 provides three wavelength measurements; CT-25 adds 1400 nm IR and CIE photopic visible transmittance.
- ±2% Test Accuracy: Supports consistent transmittance testing and material comparison.
- 0.1% Display Resolution: Clear digital measurement results.
- 13 mm Sample Capacity: Parallel optical path accommodates samples up to 13 mm thick.
- Fast Measurement: Results displayed in less than one second.
- Automatic & Manual Calibration: Two calibration modes for convenient operation.
- HOLD Function: Retains measurement results on screen after removing the sample.
- Compact Rechargeable Design: 1.14-inch colour display, USB charging and lightweight handheld construction.
Comprehensive UV, Visible and Infrared Testing
The CHNSpec CT Series provides convenient measurement of light transmittance through transparent and semi-transparent materials. Designed for rapid inspection, the instruments help evaluate UV, visible and infrared transmission characteristics in solar films, automotive glass, architectural glazing and other optical materials.
Flexible Measurement for Different Applications
The CT-23 provides essential three-wavelength testing for routine material inspection, while the CT-25 extends measurement capability with an additional 1400 nm infrared channel and CIE photopic visible light transmittance measurement across 380–760 nm. This makes the CT-25 particularly useful where broader visible light assessment and additional infrared transmission data are required.
Fast Operation and Portable Design
Simply position the sample in the measurement area to obtain results in less than one second. The instruments support manual and automatic calibration, feature a HOLD function for retaining readings and accommodate samples up to 13 mm thick. A rechargeable lithium battery and compact 115 × 70 × 14 mm design make them convenient for workshop, field and on-site testing.
Typical Applications
- Automotive window tint and solar films
- Architectural and tempered glass
- UV-protective films and materials
- Infrared-blocking window films
- Agricultural greenhouse films
- Optical glass and transparent panels
- Glass processing and quality control
- Transparent material inspection