เครื่องวัดแสง LED รุ่น DT-3809 แบรนด์ CEM 

Digital LED Light Meter

Features

- 3999 Counts Large Backlit LCD Display 
- Low Battery Indication
- Sampling Rate: 2.5 times per second
- Spectral Response close to CIE luminous spectral efficiency
- Cosine Angular Corrected
- Confirms to JIS C1609: 1993 and CNS 5519 General A class specifications
- Measuring Light source: LED white light and all visible light
- User Selectable Lux / Foot Candle scales
- Data Hold
- Max/Min/Avg Hold
- Auto Power Off and Disable function
- Auto-Ranging

Specifications

- Sensor: Silicon Photodiode with flter 
- Range: 40, 400, 4,000, 40,000, 400,000 Lux & 40, 400, 4000, 40,000 FC 
- Accuracy: ± 3% (Calibrated to standard incandescent lamp 2586°K and corrected LED day white light spectrum) 
- Power Supply: 9V Battery 

Accessories

- Instruction Manual
- Test Report
- Battery
- Carrying Case