【Professional LED Light Meter】LED light meter measures fluorescent, incandescent and (up to 400,000 lux) lamps to ensure perfect brightness every time; This ft candle light meter supports maximum, minimum and real-time value measurement modes switchable to help you find the right light level for indoor LED grow light 【Seamless connectivity with dedicated app】Experience unparalleled convenience with the HP-5000-APP's state-of-the-art Bluetooth connectivity. Sync your device with the dedicated app on your smartphone to effortlessly transfer data that provides real-time insights and helps track and analyze light intensity. 【270 degree rotatable detector】By using silicon filter diodes, the light sensor can be rotated 270° so that you can measure the photometric intensity from different angles.
eBay