Data Hold Function:One-touch data hold feature for secure reading capture and record-keeping. Wide Measuring Range:Measures 1 to 100,000 Lux with 1 Lux resolution for precise light readings. Split-Type Design:Detachable sensor with 125cm extension cable for versatile use in hard-to-reach areas. Fast & Accurate Sampling:Samples 2 times per second for real-time, reliable illuminance data. Protective Cover:Equipped with a removable protective cover to shield the sensor from dust and damage.