Description Product Features： Display: 6 digits LCD Display Parameters: Lux（lm/m2）; foot candle (lm/ft2) Resolution: 1 Lux（0…30000 Lux）; 0.1 ftc（0…2788.0 ftc） Range: 0…30000;  Lux0…2788.0 ftc  Accuracy: ±(4% 50 digits) to reference Sample rate: 2 time /sec auto power off: about 20 minutes low battery indicator Operating environment: 0℃ ~ 50 ℃(32℉~122℉)，0 ~ 80%RH Storage environment: -20℃ ~ 60℃(-4℉~140℉)，0 ~ 80%RH  Dimension and Weight: 121(L)x60(W)x30(H)mm, about 180g Product Parameters： MS6610 Range 0 ~ 2000 Lux 2000 ~ 19990 Lux 20000 ~ 50000 Lux Accuracy ±5% Resolution 1 Lux 10Lux/100Lux Sample rate 1 time / sec Operating Environment  0℃~50℃ (32℉~122℉) 0~80% RH Storage Environment  -20℃~60℃ (-4℉~140℉) 0~80% RH Features Max. Display 1999 Data Hold √ Auto Power Off Low Power Indicator √ Back Light Max/Min Value Wire Length 150 cm Sensor Size 83 x 52 x 20.5 mm Dimension 125.5 x 72 x 27 mm Weight ~ 180g (including battery) Applications: Public settings, light manufacturing, photo studio, interior renovation, construction, greenhouses Accessories： DC1.5V (AAA) x 3pcs String x 1pcs Plastic box x 1pcs Users manual x 1pcs Name of parts: 1. Sensor cover 2. Light sensor （270°adjustable only for type B） 3. LCD display 4. Function key General Maintenance Do not measure at a high temperature, high humidity places. Keep the light sensor clean. To guarantee correct readings: Hold the instrument horizontally so that the light sensor is directed upwards. When not using the instrument for a long time, please remove the battery and avoid storing in high temperature and high humidity.