Features： 1、High Performance: This is a professional light detection meter, which has high measurement accuracy and quick response speed. 2、Peak Lock Function: The digital illuminance meter can track pulse signals greater than 100mS and lock the peak value. 3、Reading Lock Function: The light meter can lock the measured value for convenient recording, no worry about the loss of data. 4、Simple to Use: The digital light meter can display the data clearly with screen, easy to operate with marked buttons. 5、Portable and Durable: The meter is small and light weight, easy to carry around, adopts ABS shell, very sturdy and durable. Specification： Item Type: Digital Light Meter Material: ABS Model: HT603 Battery: 3 x 1.5V AAA battery (without battery) Application: Light detection Basic Parameters: Range: 1000, 10000, 200000 LX 100, 1000, 20000 FC Accuracy: ±(3%+5 digits), calibrated according to ordinary incandescent lamp at 2854°K ±(6%+5 digits), other visible light sources Cosine Angle Deviation Feature: 30° ±2% 60° ±6% 80° ±25% Package List： 1 x Digital Light Meter 1 x Manual 1 x Storage Bag