Bluetooth Lux Meter WT81B - Light and Temperature Measurement - High Precision

Features:1.Can measure current illuminance and temperature, and measure the difference, maximum, and minimum values.2.Switches between illuminance and temperature units; the measuring range is (0-200,000) lx.3.Features backlight and data hold; automatic switching of measuring device functions.4.Features automatic power-off, automatic and manual data storage functions.5.The casing is made of high-quality ABS material, wear-resistant and durable, not easily damaged.Specifications:Item Type: LuxmeterMaterial: ABSModel: WT81B (Bluetooth Version)Measuring Range: 0Lx ~ 200,000LxTemperature Measurement Range: -9.9 ~ 49.9 ℃Accuracy: ±3% of reading ±fs (< 10,000Lx), ±4% of reading ±10% of reading (> 10,000Lx).Operating Temperature and Humidity: 0 ℃ ~ 40 ℃ 10% RH ~ 90% RH.Storage temperature and humidity: -20℃ ~ 50℃, 10% RH ~ 90% RH.Temperature accuracy: ± 1.0℃LCD screen update rate: 2 times/sPower supply: 3 x 1.5V AAA batteries (batteries not included)Package list:1 x lux meter (batteries not included)1 x instruction manual