Window Film Tester CT-27 Series
The CHNSpec Window Film Tester CT-27 Series window film tester is compact in size and is designed for automotive window films. It can accurately measure transmittance, green light transmittance, ultraviolet rejection rate, near-infrared rejection rate, and short-wave infrared rejection rate. The operation process is simple and easy to understand, and even first-time users can easily get started. Whether it is quality control during window film production, strict screening in quality inspection, or detailed verification during goods inspection, the CHNSpec Window Film Tester CT-27 Series can play a key role and is a high-quality tester in the window film industry.
Measurement parameters: Ultraviolet Rejection Rate (UVR), Near-Infrared Rejection Rate (NIRR), Visible Light Transmittance (VLT), Green Light Transmittance (GT), Short-Wave Infrared Rejection Rate (IRR)
Fast measurement; results appear immediately after inserting the sample
Parallel optical path design, with a test slot up to 13 mm
Supports continuous measurement and supports locking measurement data
Color display, resolution 0.1, range 0–100%
Equipped with manual and automatic calibration modes for convenient use
Lithium battery charging, eliminating the hassle of replacing traditional dry batteries
1.Application Fields
2.Technical Parameters
| Model | CT-26 | CT-27 |
| Measurement Structure | Transmission | |
| Calibration | Manual + Automatic | |
| Ultraviolet Rejection Rate | Peak wavelength 365 nm | |
| Visible Light Transmittance | Peak wavelength 530 nm | Peak wavelength 360–780 nm |
| Green Light Transmittance | / | Peak wavelength 530 nm |
| Near-Infrared Rejection Rate | Peak wavelength 940 nm | Peak wavelength 940 nm |
| Short-Wave Infrared Rejection Rate | / | Peak wavelength 1400 nm |
| Resolution | 0.1% | |
| Measurement Accuracy | Better than ±2% (colorless uniform light-transmitting materials) | |
| Maximum Sample Thickness | 13mm（max） | |
| Dimensions | 115*70*14mm | |
| Measurement Time | Less than 1 second | |
| Power Supply | Lithium battery charging | |
| Battery Capacity | 750 mA | |
| Charging Parameters | 5V/1A | |
| Screen | Full-color display, 135×240, 1.14 inches | |
| Interface | Type-C | |
| Operating Temperature | 0-40°C | |
| Humidity | Less than 85%, non-condensing | |
| Accessories | USB cable, lanyard, user manual | |
Video Demonstration
CT-27 Window Film Tester Operation Video
CT-26 Window Film Tester Operation Video