Key benefits accuracy for reliable luminance measurements. Accuracy: / 4% up to 10,000 Lux or 1,000 FC, and / 5% up to 400,000 Lux or 40,000 FC. Instant results for efficient work. Response time is 0.4 seconds. Wide measurement range for versatile use. Range from 0.01 to 400,000 Lumens (or 0.01 to 40,000 Foot Candles). Easy to use with flexible sensing. Rotatable light sensor adjustable up to 270 degrees; measure from different angles without moving the unit; read illuminance on the front display. What this device does Provides precise illuminance readings quickly to support lighting design, photography, horticulture, and safety tasks. Delivers measurements in a compact form factor with a frontreading display for convenient viewing. Key specifications Accuracy: / 4% up to 10,000 Lux or 1,000 FC; / 5% up to 400,000 Lux or 40,000 FC. Response time: 0.4 seconds. Measurement range: 0.01 to 400,000 Lumens (or 0.01 to 40,000 FC). Sensor: Rotatable up to 270 degrees for measurements from various angles. Reading location: Illuminance readout on the front of the device. How to use Point the sensor toward the light source you want to measure. Rotate the sensor up to 270 degrees to align with the direction of interest without moving the entire unit. Read the illuminance value on the front display for a quick, trustworthy measurement. Use scenarios Photography and videography: verify and balance lighting to achieve consistent exposure and color accuracy. Indoor horticulture: monitor and adjust artificial or natural lighting to support plant growth and health. Workspace and classroom environments: assess lighting compliance and optimize energy use for comfort and productivity. Notes Measurements are provided in Lux and, where applicable, in FC as described in the specifications. The device emphasizes accuracy, speed, and versatility to support a range of professional lighting tasks.