Item Type: Luxmeter <br>Material: ABS <br>Measurement Function: Illuminance and Temperature, Illuminance Difference, Illuminance Maximum and Illuminance Minimum <br>Illuminance Probe: Silicon Photodiode <br>Temperature Probe: NTC Thermistor <br>Illuminance Range: Total Range: 0~200,000Lx <br>Divided into 4 Levels: <br>×1: 0~199.9Lx Minimum Resolution: 0.1Lx <br>×10: 20.0x10~199.9x10Lx Minimum Resolution: 1Lx <br>×100: 20.0x100~199.9x100Lx Minimum Resolution: 10Lx <br>×1000: 20.0x1000~199.9x1000Lx Minimum Resolution: 100Lx <br>Illumination Accuracy: <br>×1: ±3%rdg+5dgts <br>×10: ±3%rdg+10dgts <br>×100: ±4%rdg+10dgts <br>×1000: ±4%rdg+10dgts <br>Temperature Range: -20 ~ 50℃ (-4~122℉) <br>Temperature Accuracy: ±1.0℃ <br>Repeatability: ±2% <br>Refreshing Rate: 2 Times/Sec <br>Illumination and Temperature Unit: Lx (lx)/℃ (degrees Celsius) Lx (lx)/℉ (degrees Fahrenheit) FC (foot candles)/℃ (degrees Celsius) FC (foot candles)/℉ (Fahrenheit) <br>Illumination Data Storage: maximum storage of 2000 (automatic storage) maximum storage of 60 (manual storage) <br>Power Supply: 3 x 1.5V AAA Dry Battery (Battery Not Included) <br> <br>How to Use: <br>1: Open the illuminance meter receiving cover <br>2: Install the battery 3 x 1.5V AAA (this product does not include) <br>3: Press the power button and move the receiver as close as possible to the measured light source (the gear is automatically adjusted according to the strength of the light source) <br>4: According to the buttons on the panel DIF (difference), REC (record), etc., select according to measurement requirements<br>1、The illuminance unit (Lx/FC) and temperature unit (℃/℉) can be switched. <br>2、It can be connected to Bluetooth communication and operated by mobile app. <br>3、Automatic range, sensitive response, can measure low light environment. <br>4、The screen backlight can be turned on for easy operation in the dark room. <br>5、The shell made of ABS material is wear?resistant, durable and not easy to damage.<div>1 x Digital Luxmeter (Battery Not Included)</div><div>1 x Plastic Storage Box</div><div>1 X USB Data Cable</div><div>1 x Instruction</div>