Apacer AL-100 mini spectroradiometer
- Technology
- Spectrometers
- Partner
- Apacer Technology
The Apacer AL100 is a compact, portable spectroradiometer for professional luminance and colour measurements. It supports both contact measurements and short-range non-contact measurements within 5 cm, making it suitable for testing displays and light-emitting panels of different sizes.
With a spectral range from 380 to 780 nm and an optical resolution of 5.5 nm, the Apacer AL-100 captures detailed spectral data. It measures key parameters such as luminance, correlated colour temperature (CCT), colour rendering index (CRI), chromaticity coordinates according to CIE 1931 and CIE 1976, dominant wavelength and peak wavelength.
The integrated 4.3-inch touchscreen allows results to be reviewed directly on the device. Measurement data can be saved to an SD card and analysed using the corresponding ASR software. The software also supports additional evaluations, including colour gamut, uniformity and gamma measurements.
Thanks to its compact design, built-in battery and flexible measurement modes, the Apacer AL 100 is well suited to display testing, LED product evaluation and quality control tasks in laboratory and industrial environments.
The AL-100 spectroradiometer combines handheld portability with detailed spectral and luminance analysis for professional lighting work. Its dual-use measurement approach supports direct contact testing on light-emitting surfaces as well as short-range non-contact measurements, making it suitable for displays, LED modules, signage, and other illuminated products.
Designed around MEMS micrograting technology, the device delivers broad functionality in a compact format. Users can measure luminance, spectral distribution, CCT, CRI, chromaticity coordinates, and additional colour quality metrics while logging data to the included SD card for later software-based analysis.
Range features
A high level overview of what this range offers
- Portable battery-powered design – Ideal for field measurements, mobile inspections, and on-site lighting analysis.
- Contact and non-contact operation – Supports direct surface measurements or short-distance readings for flexible use across different light sources.
- Wide luminance range – Measures from 0.5 to 70,000 cd/m², covering dim displays through to bright LED panels.
- High spectral resolution – 5.5 nm (FWHM) resolution helps resolve fine spectral features for accurate colour analysis.
- Comprehensive measurement capability – Captures spectrum, luminance, CCT, CRI, chromaticity coordinates, Rf/Rg, and related light quality data.
- MEMS micrograting technology – Enables compact construction while maintaining dependable measurement performance.
- SD card data logging – Saves measurement records for later review and reporting in the supplied software.
- Complete accessory kit – Includes USB cable, power adapter, 8 GB SD card, cosine correction cap, and shockproof carrying case.
What’s in this range?
All the variants in the range and a comparison of what they offer
Specification | Value |
Luminance measurement range | 0.5 – 70,000 cd/m² |
Measurement functions | Luminance; correlated colour temperature (CCT, Δuv); spectral radiance; CRI; chromaticity (CIE 1931 x,y & CIE 1976 u’,v’); spectrum (380–780 nm, optical range 340–850 nm) |
Measurement angle | 5° |
Repeatability (standard source, luminance) | 0.35% (for 5 ~ 15,000 cd/m²) |
Repeatability (standard source, chromaticity) | Δx: 0.001; Δy: 0.001 (for 5 ~ 15,000 cd/m²) |
Accuracy (standard source, luminance) | ±3% (for 5 ~ 15,000 cd/m²) |
Accuracy (standard source, chromaticity) | ±0.002 (for 5 ~ 15,000 cd/m²) |
Spectral range | 380 – 780 nm (optical range 340 – 850 nm) |
Spectral resolution (FWHM) | 5.5 nm |
Measurement speed (integration time) | Auto: 1 ms to 3000 ms; Manual: up to 60 s |
Grating | MEMS micrograting |
Optical system | Shading cylinder type |
Supported languages | Traditional Chinese, Simplified Chinese, English |
Dimensions (L × W × H) | 144 × 97 × 28 mm (without shading tube); 184 × 97 × 32 mm (with shading tube) |
Weight | 500 g |
Battery | Rechargeable Li-ion battery (2850 mAh), with AC adapter for charging |
Battery run time (continuous use) | ~4.8 hours |
Charging time (full charge) | ~4.5 hours |
Battery lifetime (expected) | ~10,000 hours |
Operating environment | 0 °C to 40 °C, up to 80% RH |
Storage environment | -10 °C to 60 °C, up to 70% RH |
Accessories | USB cable, power adapter, 8 GB SD card, cosine correction cap, shockproof case |
Software display metrics | Luminance, CCT (with Δuv), spectral radiance, CRI, XYZ, chromaticity (CIE 1931 & 1976) |
SDK support | Provided (SDK available for Visual C++ and Visual Basic integration) |
FAQs
for Apacer AL-100 mini spectroradiometer
Yes. The AL-100 supports both direct contact use and short-range non-contact measurement. For small light sources or display surfaces, the shading tube can be attached and placed against the surface to reduce ambient light influence. For larger panels or harder-to-reach sources, the device can also measure from a short distance within its 5° field of view.
The device measures a broad set of photometric and colour metrics, including spectral distribution, luminance, CCT, Δuv, CRI, chromaticity coordinates in CIE 1931 x,y and CIE 1976 u’,v’, and additional colour quality values such as Rf/Rg. This makes it a versatile spectral light meter for evaluating both brightness and colour performance.
The AI 101 supports a very wide illuminance measurement range from 1 lux up to 600,000 lux, making it suitable for both low-light indoor environments and extremely bright professional lighting systems such as stadium, stage, or outdoor lighting installations.
Unlike traditional lux meters that only measure illuminance (lux), the AI 101 is a spectral illuminance meter. It provides advanced spectral analysis including CRI, CCT, TM30-15, TLCI, dominant wavelength, spectral graphs, and colour quality metrics. Its 5.5 nm optical resolution also allows far more accurate measurement of narrow-band LED light sources
Yes. The AL-100 includes software for viewing and processing measurement data, and an SDK is also available for integration into custom workflows. The SDK supports Visual C++ and Visual Basic, making the instrument suitable for software integration and automated test environments.
Yes. The AI 101 is specifically designed for high-precision LED lighting measurement. Its high spectral resolution and wide wavelength range (330–850 nm) allow accurate analysis of modern LED luminaires, including narrow-band and high-output LEDs commonly used in industrial, commercial, and entertainment lighting.
The supplied kit includes a USB cable, AC power adapter, 8 GB SD card, cosine correction cap, and a shockproof carrying case. These accessories support charging, data logging, transport protection, and measurement flexibility straight out of the box.
Spectral luxmeters such as the AI 101 are widely used in architectural lighting, commercial lighting design, film and broadcast production, stage lighting, outdoor lighting validation, LED manufacturing, research laboratories, and quality assurance testing where precise illuminance and colour measurement are essential.
