Lutron LX-102 Digital Light Meter
Lutron LX-102 Digital Light Meter with Analog Output
The Lutron LX-102 Digital Light Meter is a professional-grade illuminance measurement device designed for precise light intensity readings across various applications. This ISO-9001, CE, and IEC1010 certified instrument offers exceptional accuracy and reliability for photographers, safety inspectors, architects, and researchers who require dependable light level measurements.
Key Features & Benefits
- Professional Certification - ISO-9001, CE, and IEC1010 certified for guaranteed quality and safety
- Dual Measurement Units - Measures in both Lux (0-50,000) and Foot-candle (0-5,000)
- Multi-Range Capability - Three selectable ranges for precise readings across lighting conditions
- High Accuracy - ±5% accuracy for reliable light intensity measurements
- Separate Light Sensor - Detachable sensor for optimal positioning and measurement flexibility
- C.I.E. Photopic Compliance - Exclusive photodiode & color correction filter matching human eye response
- COS Correction Factor - Ensures accurate readings at different light angles
- Data Hold Function - Freezes measurements on display for easy recording
- Analog Output - 0.1 mV/digit (max 200.0 mV) for connecting to recording devices
- Fast Response - Approximately 0.4 second sampling time for quick readings
- Clear LCD Display - 13mm (0.5") digits visible even in bright ambient light
- Low Power Consumption - Approximately DC 2 mA for extended battery life
- Low Battery Indicator - Built-in warning system when replacement is needed
- LSI-Circuit Design - High reliability and durability for professional use
- Compact & Lightweight - Only 220g (0.52 LB) with batteries for portable convenience
Technical Specifications Lutron LX-102 Digital Light Meter
Parameter |
Specification |
Model |
Lutron LX-102 |
Display |
13 mm (0.5") LCD |
Measurement Functions |
Lux, Foot-candle, Data hold, Analog output |
Measurement Ranges |
Lux: 0-2,000 / 0-20,000 / 0-50,000 (3 ranges)
Foot-candle: 0-200 / 0-2,000 / 0-5,000 (3 ranges) |
Resolution |
Lux: 1 Lux / 10 Lux / 100 Lux
Foot-candle: 0.1 Ft-cd / 1 Ft-cd / 10 Ft-cd |
Accuracy |
±(5% + 2 digits) at 23°C ± 5°C |
Zero Adjustment |
Internal adjustment |
Over-input |
Indication of "1" |
Sampling Time |
Approximately 0.4 second |
Sensor Structure |
Exclusive photodiode & color correction filter |
Analog Output |
0.1 mV/1 digit, Max. 200.0 mV |
Operating Temperature |
0 to 50°C (32 to 122°F) |
Operating Humidity |
Less than 80% R.H. |
Power Supply |
DC 9V battery, 006P, MN1604 (PP3) or equivalent |
Power Consumption |
Approximately DC 2 mA |
Dimensions |
Main Instrument: 163 × 70 × 30 mm (6.4 × 2.8 × 1.2 inch)
Sensor probe: 82 × 55 × 7 mm (3.2 × 2.2 × 0.3 inch) |
Weight |
220g (0.52 LB) with batteries |
Included Accessories |
Instruction manual (1 PC) |
Certifications |
ISO-9001, CE, IEC1010 |
Measurement Ranges & Accuracy Lutron LX-102 Digital Light Meter
Lux Measurement |
Foot-candle Measurement |
Range |
Resolution |
Accuracy |
Range |
Resolution |
Accuracy |
2,000 Lux |
1 Lux |
±(5% + 2d) |
200 Ft-candle |
0.1 Ft-candle |
±(5% + 2d) |
20,000 Lux |
10 Lux |
±(5% + 2d) |
2,000 Ft-candle |
1 Ft-candle |
±(5% + 2d) |
50,000 Lux |
100 Lux |
±(5% + 2d) |
5,000 Ft-candle |
10 Ft-candle |
±(5% + 2d) |
Applications
Photography & Videography Lutron LX-102 Digital Light Meter
- Studio Lighting Setup - Precisely measure illumination for optimal exposure settings
- Location Assessment - Evaluate ambient lighting conditions before shoots
- Cinematography - Ensure consistent lighting across film and video sets
- Product Photography - Maintain standardized lighting for product catalogs
Industrial & Workplace Safety
- Regulatory Compliance - Verify illumination meets OSHA and other safety standards
- Production Areas - Ensure proper lighting for manufacturing and assembly
- Office Environments - Optimize lighting for employee productivity and comfort
- Quality Control Stations - Confirm adequate lighting for inspection processes
Architectural & Environmental Design
- Building Commissioning - Verify lighting installations meet design specifications
- Energy Audits - Identify opportunities for lighting optimization and energy savings
- Exhibition Spaces - Set appropriate lighting levels for museums and galleries
- Landscape Lighting - Measure illumination for outdoor architectural features
Research & Education
- Scientific Research - Monitor light conditions for experiments and studies
- Horticulture - Measure light intensity for plant growth research
- Educational Facilities - Ensure proper illumination in classrooms and laboratories
- Environmental Studies - Track natural and artificial light levels in various settings
Advanced Features Explained
Professional Sensor Technology Lutron LX-102 Digital Light Meter
The LX-102 employs an exclusive photodiode with specialized color correction filter that precisely matches the C.I.E. photopic curve—the international standard for human eye light response. This ensures the meter measures light intensity as it would be perceived by the human eye rather than just physical radiation, providing more relevant readings for practical applications.
The sensor's COS correction factor standardization further enhances accuracy by accounting for the angle at which light strikes the sensor surface. This means measurements remain consistent even when light comes from different directions, not just perpendicular to the sensor.
Detachable Sensor Design Lutron LX-102 Digital Light Meter
The separate light sensor design offers significant advantages over fixed-sensor meters:
- Flexible Positioning - Place the sensor exactly where measurement is needed while keeping the display visible
- Reduced Interference - Prevent your body from casting shadows or reflecting light onto the measurement area
- Access to Difficult Locations - Measure in tight spaces or awkward positions while easily reading the display
- More Accurate Results - Position the sensor for optimal readings without compromising visibility
Data Hold & Analog Output Lutron LX-102 Digital Light Meter
The data hold function allows users to freeze the current reading on the display, making it easier to record measurements in challenging positions or when taking multiple readings in sequence.
For continuous monitoring or recording of light conditions over time, the LX-102 provides an analog output signal (0.1 mV per digit, maximum 200.0 mV) that can be connected to data loggers, chart recorders, or other recording devices. This feature is particularly valuable for:
- Long-term environmental studies
- Light variation analysis throughout the day
- Automated quality control processes
- Research requiring continuous light level documentation
Recommended Light Levels Lutron LX-102 Digital Light Meter
The Lutron LX-102 Digital Light Meter helps verify that illumination meets recommended standards for different environments:
Environment/Activity |
Recommended Illuminance (Lux) |
Foot-candle Equivalent |
Emergency Staircases, Storage Areas |
50-100 Lux |
5-10 Ft-cd |
Simple Orientation, Short Visits |
100-150 Lux |
10-15 Ft-cd |
Working Areas with Occasional Visual Tasks |
150-250 Lux |
15-25 Ft-cd |
Warehouses, Homes, Theaters, Archives |
250-350 Lux |
25-35 Ft-cd |
General Offices, Classrooms, Supermarkets |
350-500 Lux |
35-50 Ft-cd |
Laboratories, Technical Drawing, Precision Work |
500-750 Lux |
50-75 Ft-cd |
Visual Tasks of Medium Contrast |
750-1,000 Lux |
75-100 Ft-cd |
Visual Tasks of Low Contrast |
1,000-2,000 Lux |
100-200 Ft-cd |
Performance of Visual Tasks of Low Contrast |
2,000-5,000 Lux |
200-500 Ft-cd |
Performance of Visual Tasks Requiring Extreme Accuracy |
5,000-10,000 Lux |
500-1,000 Ft-cd |
Overcast Day (Outdoor) |
10,000-25,000 Lux |
1,000-2,500 Ft-cd |
Direct Sunlight (Outdoor) |
32,000-100,000 Lux |
3,200-10,000 Ft-cd |
Operating Instructions Lutron LX-102 Digital Light Meter
- Power On - Turn on the meter using the power switch
- Range Selection - Choose the appropriate Lux or Foot-candle range according to the environment
- Sensor Positioning - Place the sensor in the location where you want to measure illumination
- Stabilization - Allow a brief moment for the reading to stabilize
- Reading - Observe the measurement on the LCD display
- Data Hold - If needed, press the HOLD button to freeze the current reading
- Multiple Measurements - For comprehensive assessment, take readings at multiple points in the area
- Recording - Document the readings manually or connect to external devices via analog output
Maintenance Tips Lutron LX-102 Digital Light Meter
- Sensor Care - Keep the photodiode sensor surface clean and free from dust or scratches
- Battery Management - Replace the 9V battery when the low battery indicator appears
- Storage - Store in a dry place away from extreme temperatures when not in use
- Calibration - For continued accuracy, perform occasional zero adjustment using the internal adjustment function
- Cleaning - Wipe the meter body with a slightly damp cloth if necessary; avoid solvents
- Sensor Protection - When not in use, protect the sensor from direct light exposure to prevent degradation
About Lutron Electronic Lutron LX-102 Digital Light Meter
Lutron Electronic is a leading manufacturer of professional test and measurement instruments, known worldwide for their quality, reliability, and innovation. With ISO-9001 certification, Lutron maintains strict quality control standards throughout their manufacturing processes. Their comprehensive product range includes light meters, environmental meters, sound level meters, anemometers, and various other testing equipment for industrial, commercial, and research applications.
Comparison with Other Light Meters Lutron LX-102 Digital Light Meter
Feature |
Lutron LX-102 |
Basic Light Meters |
Premium Light Meters |
Measurement Range |
0-50,000 Lux / 0-5,000 Ft-cd |
Typically 0-20,000 Lux |
Similar or slightly higher |
Accuracy |
±(5% + 2 digits) |
±10% or less |
±3-4% |
Sensor Type |
C.I.E. photopic compliant |
Basic photodiode |
Similar compliance |
Sensor Design |
Detachable |
Often fixed |
Usually detachable |
Analog Output |
Yes |
Rarely available |
Often available |
Certification |
ISO-9001, CE, IEC1010 |
Varies, often minimal |
Similar certifications |
Typical Price Range |
Mid-range |
Low-cost |
High-end |
What's in the Box Lutron LX-102 Digital Light Meter
- Lutron LX-102 Digital Light Meter main unit
- Detachable light sensor probe
- 9V battery (depending on region)
- Instruction manual
- Protective carrying case (in some regions)
Why Choose the Lutron LX-102?
Professional Quality & Reliability Lutron LX-102 Digital Light Meter
With ISO-9001, CE, and IEC1010 certifications, the LX-102 meets international quality and safety standards. The LSI-circuit design and professional sensor technology ensure consistent, reliable performance for critical light measurement applications.
Excellent Value for Professional Features Lutron LX-102 Digital Light Meter
The LX-102 offers features typically found in more expensive models—including multiple ranges, separate sensor, data hold, and analog output—at a competitive price point. This makes it an excellent choice for professionals who need accurate light measurements without investing in laboratory-grade equipment.
Versatile Application Range Lutron LX-102 Digital Light Meter
With its wide measurement range (0-50,000 Lux), dual unit display (Lux/Foot-candle), and flexible sensor positioning, the LX-102 is suitable for virtually any lighting measurement scenario. From dim emergency lighting to bright outdoor conditions, this single instrument handles diverse measurement needs.
User-Friendly Operation Lutron LX-102 Digital Light Meter
Designed for straightforward operation with clear display readings and simple controls, the LX-102 requires minimal training. The data hold function, quick sampling time (0.4 second), and detachable sensor make it convenient to use even in challenging measurement environments.
Summary Lutron LX-102 Digital Light Meter
The Lutron LX-102 Digital Light Meter is a professional-grade illuminance measurement tool that offers exceptional accuracy, versatility, and ease of use. With its ISO-9001 certification, C.I.E. photopic compliant sensor, and multiple measurement ranges, this meter delivers reliable light intensity readings for photography, workplace safety assessment, architectural design, and research applications.
Key advantages include the detachable sensor for optimal positioning, data hold functionality for convenient recording, and analog output capability for continuous monitoring. The compact design and clear LCD display make it highly portable and easy to use in various environments.
Whether you're a professional photographer setting up studio lighting, a safety inspector verifying workplace illumination standards, or a researcher monitoring environmental light conditions, the Lutron LX-102 provides the precision, features, and reliability needed for accurate light measurement at a competitive price point.