LS108A (Model): Product Features: 1mm test aperture, can measure transmittance and blocking rate of 850nm/940nm, 550nm visible light; PC software, suitable for transmittance detection of IR ink holes, infrared windows, and infrared filter strips.
LS108D (Model): Product Features: 0.5mm test aperture, can measure transmittance and blocking rate of 850nm/940nm, 550nm visible light; PC software, suitable for transmittance detection of IR ink holes, infrared windows, and infrared filter strips.
Core Advantages:

Adopts three-in-one optical path design, three data can be measured with one hole alignment, simple operation and fast measurement.
There are three display modes available: 850nm/550nm/940nm, 550nm/850nm and 550nm/940nm.
Parallel optical path design ensures accurate measurement, which can pass national metrology and has obtained CE certification.
Uses Type-C reversible plug interface, can be connected to a 5V mobile power supply for use.