Victor 1010D+ / 1010DL Professional Digital Lux Meter – 0~199,999 Lux High-Precision Illuminance Tester with 4-Bit LCD, Silicon Photocell, & Optional Bluetooth Data Logging for Lab, Horticulture & Industrial Light Audits

1. Ultra-Wide 199,999 Lux Measurement Range with High Resolution
The 1010D+ digital lux meter is built for extreme versatility, offering an unparalleled dynamic measurement range spanning from 0 to 199,999 Lux and 0 to 19,999 FC (Foot-Candles). This wide scope means a single digital lux meter can handle the most diverse scenarios—from testing sensitive museum display cases (requiring low light) to measuring the blinding brightness of automotive headlights or outdoor sports stadium floodlights. Moreover, the resolution is exceptionally fine. For Lux measurements below 200 Lux, this digital lux meter offers a delicate 0.1 Lux resolution; for FC measurements below 20 FC, it provides 0.01 FC resolution. This high resolving power ensures that when you use this digital lux meter for detailed scientific experiments or strict safety compliance checks, you always get the granular data you need, not just a rough estimation.

2. Advanced Silicon Photocell Sensor & Broad Spectral Response
At the core of the 1010D+ digital lux meter lies a high-performance Silicon Photocell sensor, far superior to cheap photodiode alternatives. This professional sensor provides an impressive Spectral Range of 320~730nm, covering near-UV to near-IR spectrum, ensuring accurate detection across all modern lighting technologies, including incandescent, fluorescent, HID, and high-power LEDs. Accuracy is a key differentiator for this digital lux meter: it delivers an Illumination Accuracy of ±4% when corrected by a standard flat lamp at a 2856K color temperature, and ±(6%~5Lux) for other visible sources. This level of precision confirms that the 1010D+ digital lux meter meets the rigorous standards required by photometric laboratories and industrial quality assurance departments.

3. Optimized Cosine Angle Correction for True Surface Illumination
Real-world light doesn't always hit a surface perfectly perpendicular. Understanding this optical principle, the 1010D+ digital lux meter is equipped with a sophisticated Cosine Angle Deviation characteristic correction function. This ensures that even when light strikes the sensor at an angle, the meter accurately reads the actual illumination intensity falling on a flat surface, as perceived by the human eye. The specifications for this digital lux meter guarantee an error of only ±2% at a 30° angle, ±6% at a 60° angle, and ±25% at an 80° angle. For lighting designers and architects, this feature makes the 1010D+ digital lux meter incredibly reliable for ensuring even light distribution across workbenches, retail displays, and public spaces, eliminating misleading readings caused by awkward probe positioning.

4. Smart Computing Functions: REL, Max/Min, and Data HOLD
The 1010D+ digital lux meter goes far beyond just showing live numbers. It packs an array of powerful on-board computing functions to simplify your data analysis:

• Relative Value (REL) Measurement: A critical feature for this digital lux meter, the REL function allows you to zero out the baseline ambient light. This is essential when measuring the specific contribution of a single light source (like a UV curing lamp or a flash) without the interference of constant background illumination.
• Max/Min Recording: This function enables the digital lux meter to automatically capture and store the highest and lowest intensity readings during a testing period. It’s perfect for quickly identifying flickering issues in fluorescent lighting or verifying the stability of newly installed solar panel illumination.
• Data Retention (HOLD): The classic HOLD button freezes the current reading on the 4-bit LCD display, allowing you to pull the digital lux meter out of a difficult-to-reach fixture and record the number safely.

5. Dual-Model Options: Standard Precision vs. Advanced Bluetooth Connectivity
The 1010 series offers two distinct versions of this digital lux meter to perfectly match different professional workflows:

• 1010D+ (Standard Version): This model is the classic, robust digital lux meter ideal for on-the-go inspections. It features a Backlit 4-bit LCD display and an Automatic Shutdown function (powering off after 10 minutes of inactivity to save battery), which can be canceled for continuous long-term monitoring. Powered conveniently by a standard 9V battery, this version of the digital lux meter is reliable and cost-effective for daily field use.
• 1010DL (Bluetooth Version): For data-centric professionals, the 1010DL digital lux meter adds advanced Bluetooth connectivity. This allows you to wirelessly stream real-time light measurements to your smartphone, tablet, or PC. By pairing this digital lux meter with dedicated apps, you can generate professional light audit reports, create illumination heatmaps, and log data over extended periods without manual note-taking.

6. Portable, Ergonomic Design and Wide Operating Range
Designed for extensive field use, the 1010D+ digital lux meter is remarkably compact, measuring only 154 x 60 x 31mm. Weighing just 185g (including the battery), this lightweight digital lux meter can be held comfortably in one hand or carried effortlessly in a tool bag. Despite its portability, it is built to endure real-world conditions. The device operates flawlessly in a working environment of 0~40°C with up to 90% non-condensing relative humidity and can be safely stored in temperatures ranging from -20°C to 60°C. When you need a rugged, pocket-sized, and highly accurate digital lux meter that can accompany you from blazing hot rooftop solar installations to cool indoor museum archives, the 1010D+ series delivers unmatched performance and durability. No matter your lighting challenge, this digital lux meter is the ultimate precision tool for modern measurement tasks.