Lux Meter Product Features User-friendly Split Type Design: Compact and lightweight, the sensor and main body are detachable and connected by a retractable spring for convenient handling. Wide Measurement Range: Measures up to 200,000 LUX with a high display resolution of 0.1 Lux/0.1 FC. Easily switch between Lux or FC units. Light and Sound Alarm: Set upper and lower alarm limits with audio and visual alerts when limits are exceeded. Data Hold Function: Holds measurement data for easy checking and recording. Clear VA Color Display Screen: Equipped with a backlit LCD for easy operation and reading. Wide Applications: Ideal for measuring light intensity in various settings such as homes, offices, schools, laboratories, warehouses, factories, hospitals, hotels, restaurants, and airports. Additional Features: Includes measurement of maximum, minimum, and average values, 15-minute auto-off, and low battery indication. Specifications Material: ABS Range: 999.9/99999/199999x10 LUX, 99.9/999.9/19999 FC Light Sensor: Silicon photo-diode with a spectral response filter Sampling Rate: Approx. 8 times per second Incident Angle: 120° Repeated Test Deviation: ±2% Spectral Range: 400~700 nm Auto-off: 15 minutes Operating Environment: -10~50℃,