Remotely trigger your Elinchrom and Phottix lighting systems with your Speedmaster L-858D-U light meter by installing this RT-EL/PX Elinchrom & Phottix Transmitter Module from Sekonic. It features support for the 2.4 GHz Elinchrom EL-Skyport and Phottix Strato II/Ares II triggering protocols and even enables remote control over the power and modeling lights of select Elinchrom flashes.