Uni-t ut383bt Bluetooth new version upgraded mini environmentally friendly bt series light meter light meter products are shipped according to the color or size of the main image on the product page. UT383 BT Mini Light Meter UT383 BT can effectively represent light intensity with electrical signals, then process the data and display the measurement results on the LCD. A new Bluetooth function is added to enable data transmission and analysis on the mobile App iENV. It can be downloaded from Google Play or Apple Store. Main features 1. Light weight and user-friendly interface 2. Voltage stabilization control technology, low power consumption 3. Light source calibration to improve accuracy and consistency