Features 1、Support for backlight display, convenient for using and more clear reading. 2、It features accurate light measurement, fast and sensitive, convenient to use. 3、180 degrees rotating probe for easier measurement, easy to operate and measure. 4、Support for automatic power off function, data hold, maximum value and maximum value. 5、Comes with a storage bag, compact, portable and easy to carry, durable for long time use. Specification Condition: 100% Brand New Item Type: Light Meter Material: ABS Model: HT620 Range LX/FC 1000, 10000, 100000 Accuracy ±(3%+5Lx) calibrated at 2854°K according to ordinary incandescent lamp) ±(6%+5Lx) other visible light sources Cosine Angle Deviation Feature 30° ±2% 60° ±6% 80° ±25% Calibration Calibrated as standard incandescent lamp at a color temperature of 2854°K Resolution 1LX/1FC Sensor Silicon Photocell and Light Filter Use Environment Temperature: 0~40℃, Humidity: <80%RH, Altitude: <2000m Storage Environment -10~50℃, Humidity <80%RH Sampling Rate About 2 Times per Second Spectrum Range 320-730nm Automatic Power Off 10 Minutes Power Supply 3 x 1.5V AAA (LR03) Battery (Not Included) Product Size Approx. 185 x 60 x 30 mm / 7.3 x 2.4 x 1.2 in Weight Approx. 274g / 9.7oz Package List 1 x Light Meter (Battery Not Included) 1 x Instruction Manual 1 x Bag