
Apogee PPFD Sensor
Apogee PPFD Sensor This PPFD sensor is sold to be used with the Scynce LED Echo Air. 400-750 nm ePAR Sensor with custom 20-meter cable and mounting bracket. Apogee’s newest, cutting-edge ePAR sensor was created in 2021 as an upgrade to the ePFD sensor and designed to measure the newly defined 400 -750 nm ePAR radiation range that research has shown to be photosynthetically active, beyond the traditional 400-700 nm range. The SQ-618-SS ePAR sensor outputs a digital signal using Modbus RTU protocol over RS-232 or RS-485. The sensor features a rugged, aluminum housing that is fully submersible and built to withstand harsh conditions, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to data loggers and controllers. The sensor cable includes an IP68 marine-grade stainless-steel cable connector to simplify sensor removal and replacement from permanent installations for maintenance and calibration. Typical applications of ePAR sensors include measuring total