Descriptions: UT383 Digital Luxmeter is a mini light meter equipped with photoelectric sensing technology, which can effectively represent light intensity with electrical signals, then processes the data and displays the result on the LCD. Features: Mini light meter with stable, safe and reliable measurement. Data hold function, maximum and minimum value measurement. A great tool for monitoring light intensity in homes, offices, schools, laboratories, indoor farming, hospitals, and other areas. Exquisite and compact, easy to carry and measure. Super clear LCD display, large screen display, convenient reading. Auto power off, energy saving. Specifications: Brand: UNI-T Size: 16.5 x 5.3 x 3cm / 6.50 x 2.09 x 1.18inch Weight: 167g Battery: 3 *AAA (Not included) 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 4.5V Current Consumption working mA ≤30mA Power off uA ≤10uA Working Environment Temperature 0 ~ 40°C Humidity ≤80%RH Storage Environment Temperature -20 ~ 60°C Humidity ≤75%RH Key Functions ON/OFF Bluetooth Switch Short press: power on/off Long press: convert to Bluetooth in power-on state 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 Package content: 1 x UNI-T UT383 Mini Lux Light Meter (battery not included) 1、Mini light meter with stable, safe and reliable measurement 2、Data hold function, maximum and minimum value measurement 3、A great tool for monitoring light intensity in homes, offices, schools, laboratories, indoor farming, hospitals, and other areas 4、Exquisite and compact, easy to carry and measure 5、Super clear LCD display, large screen display, convenient reading