Test irradiance intensity of blue light up to 760W/m². The sensor inside is from a famous Japan semiconductor company.
Application: 1. test how much blue light emitting from computer. 2. test how much blue light in LED lights. 3. the anti-blue light rate of your glasses.
Record irradiance intensity datas at different location methodically by grids.
Simple and safe APP. Only need to connect the bluetooth of smart phone. Can be still used even if there is no internet signals.