OPPLE LIGHTING Light Master IV Lux Meter

The OPPLE LIGHTING Light Master IV is a professional-grade digital lux meter designed for precise measurement of illuminance in various environments. With a wide measurement range from 0.1 to 200,000 Lux, it is suitable for applications in lighting design, workplace safety, photography, and industrial inspection. The device features a silicon photodiode sensor with spectral response filter for accurate CIE photopic response, ensuring reliable readings that match human eye perception.

Advantages

High accuracy of ±3% rdg ±0.5% f.s. for readings below 10,000 Lux and ±4% rdg ±10 digits above 10,000 Lux. Auto-ranging function simplifies operation, while data hold and max/min hold allow for easy recording of measurements. The backlit 4-digit LCD ensures readability in low-light conditions. Auto power off after 15 minutes conserves battery life.

Suitable for

• Lighting professionals and engineers for field measurements
• Workplace safety inspections to ensure compliance with illumination standards
• Photographers and videographers for setting up lighting
• Industrial and laboratory environments requiring precise light measurement

Key specifications

• Measurement Range: 0.1 to 200,000 Lux
• Accuracy: ±3% rdg ±0.5% f.s. (<10,000 Lux); ±4% rdg ±10 digits (>10,000 Lux)
• Resolution: 0.1 Lux (0.1-199.9 Lux), 1 Lux (200-1999 Lux), 10 Lux (2000-19999 Lux), 100 Lux (20000-200000 Lux)
• Units: Lux and Foot-Candle (FC)
• Sensor: Silicon Photodiode with spectral response filter
• Spectral Response: CIE Photopic
• Display: 4-digit LCD with backlight
• Sampling Rate: 2 times/second
• Data Hold: Yes
• Max/Min Hold: Yes
• Auto Ranging: Yes
• Auto Power Off: After approx. 15 minutes
• Power Source: 1 x 9V (6F22) battery
• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Operating Humidity: 0% to 80% RH
• Over-range Indication: OL
• Cosine Correction: Yes

Recommendations

For best results, calibrate the meter periodically and avoid exposing the sensor to direct sunlight or extreme temperatures. Use the included battery and replace when low battery indicator appears.