Basic Hand Held Lumen Testing Machine - Batteries Not Included Features: 4-digit LCD Display, Spectral sensitivity close to CIE photopic curve, Auto ranging from 0.05 to 7000 Lumens, Accurate and instant response, Data hold function, Data memory and read function, Zero function, Ratio function, Sort function, Comparator function, Best for measuring LEDs, small lamps, fiber illuminators. Auto power off function. RS232 Interface. Adapter plates included. Specifications: Measuring Range: 9.999, 99.99, 999.9, 7000 lumens, Auto ranging (4 step). Resolution: 0.001 lumens. Accuracy: 0.05 to 0.1 7%, 0.1 to 1000 1%, 1000 to 7000 3%. Integrating Sphere Diameter: 50mm. Sample Pore Diameter: 12.7mm. Temperature Characteristics: 0.1%/. Measuring Rate: Approximately 5 times/sec. Photo sensor: Silicon photodiodes. Data Memory Capacity: 999 sets. (Direct reading from LCD display). Data Logger Capacity: 40000 sets. Power Source: 6 pcs AAA size Battery. Battery Life (typical): 100 hours. Integrating Sphere Lead Length: 150 cm (approx.) Integrating Sphere Dimensions: 68mm (Diameter) 82mm (H). 1 Year Warranty
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