Handheld Digital Light Meter LX1330B Illuminance Meter Measuring 200000 Lux, High Accuracy and Rapid Response. The LX1330B can measure from 0 up to 200,000 lux Digital Light Meter Model LX-1330B Description: Handheld Digital Light Meter LX1330B Illuminance Meter Measuring 200000 Lux, High Accuracy and Rapid Response. The LX1330B can measure from 0 up to 200,000 lux, you can switch the units between lux and footcandle by simply pressing a button. It's powered by a 9V battery, which last for 200 hours or even longer. Other nice features include data hold, auto zero and more Features: High Accuracy and rapid response Auto Zeroing Over-range indication Unit and Sign display for easy reading Data Hold Low power consumption Short rise and fall time Specifications: Display: 3-1/2 digit 18mm LCD Power: 9V battery Ranges: 0.1-200/2,000/20,000/200,000 Lux Accuracy: ±3% ±10 digits (0-20,000 lux) ±5% ±10 digits (over 20,000 Lux) Repeatability: ±2% Temperature Characteristic: ±0.1%C Photo detector type: Silicon Photo Diode with Filter Operating temperature: 32-104 degrees F (0-40 degrees C) Sampling rate: 2-3 times per second Battery life: 200 hours (estimate) Dimensions: 149 x 71 x 41 mm Photo Detector Dimensions: 100 x 60 x 28 mm Light meter Lux meter LX-1330B TLEAD à¤Ã×èͧÇÑ´¤ÇÒÁà¢éÁáʧ à¤Ã×èͧÇÑ´áʧ