Check the listing for details. Handheld Digital Light Meter Luxmeter Luminometer 0-200000Lux/18587FC. Condition: New. Listed at 21.00 USD. Note: we'll ship this item via Epacket to US, the delivery time is about 3 weeks; For other countries, we'll ship it via registered air mail of China Post, usually the delivery time is about 40 days. If you want express mail service, please contact us for extra postage in advance. UT383 is a mini light meter equipped with photoelectric sensing technology, which can effectively represent light intensity with electrical signals, then processes data and displays the result on LCD. It is light weight, compact, ergonomic, and user friendly, making it a great tool for monitoring light intensity in homes, offices, schools, laboratories, indoor farming, hospitals, and other areas. Functions Range Resolution Accuracy Luminance 0～9999Lux 1LUX ±4%rdg+5dgts ≥10000Lux 10LUX ±5%rdg+8dgts 0～9999Fc 1Fc Bit conversion: FC=LUX/10.76 The accuracy of FC does not need to be checked. It is calculated by the formula. Input the same value and convert units to check whether it conforms to FC=LUX/10.76 ≥10000Fc 1Fc Measurement Range 0～200,000 lux Sample Rate 0～9999Fc 1Fc 0.5s Overload Indication OL MAX/MIN MAX/MIN Data Hold HOLD LCD Backlight Yes Auto Power Off 5min Low Battery Indication 3.0~3.5V Battery (not included) 4.5V Current Consumption working mA ≤30mA Power off uA ≤10uA Working Environment Temperature 0～40℃ Humidity ≤80%RH Storage Environment Temperature -20～60℃ Humidity ≤75%RH Key Functions ON/OFF Short press: power on/off MAX/MIN Short press to switch between MAX/MIN/QUIT LUX/Fc Short press switch between LUX/Fc HOLD/BL Short press to hold or release data. Long press to turn on/off backlight