The LightScout Quantum (PAR) Meter with external sensor provides scientifically accurate PAR light readings under any light source, including LED. Measures 400nm to 700nm. With an external sensor, this meter is perfect for use in Greenhouses on hanging baskets and anywhere you need to place the sensor away from the actual meter. Stores 99 data points in the manual log and recall. Includes 14' straight RJ11 cable, 3' coiled RJ11 cable, selfie stick, 2 AAA batteries and soft carrying case.