BT-8801C Digital Plant Light Meter can measure light from 0.1~400,000 Lux, expandable light detector up to 2m, data retention, suitable for schools, hotels, hospitals, offices, factories, shops and other places. [Outstanding Performance]BT-8801C light meter measurement range up to 400,000Lux / 40,000FC. ±4%rdg+1.0%f.s (less than 10,000 Lux/1,000 FC) /±5%rdg+1.5% f.s (more than 10,000 Lux/1,000FC); Resolution:0.1Lux / 0.01Fc; Measurement speed: 2 times / second. [Stretchable Light Detector up to 2 Meters]A removable light detector and the connecting wire that reaches 2 meters allow you to measure light at the best location for your convenience. The light detector comes with a lid to protect the light detector and keep it away from dust. [High Brightness LCD & Low Consumption]BT-8801C lux meter adopts black & white high brightness LCD and large screen display. LCD display has low power consumption and easy to read data. LCD screen size: 28.6mmx51.3mm, character height: 13mm. [Multifunctional Light Meter]Supports push the button to lock data, relative measurement mode, auto zero, Max/Min hold, auto/manual ranging, relative value, over-range reminder, low battery indication, data storage, environment temperature display, Lux/FC & ℃/℉units selection. Color: As Shown Material: plastic Package Contents: 1 * BT-8801C Digital Light Meters(Without 1 x 9V battery)(The printed words on the product may be different, but it not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.