Sekonic SE RT-GX Radio Transmitter for Godox

The Sekonic SE RT-GX Transmitter is a user-replaceable radio module that fits neatly next to the batteries in the SPEEDMASTER L-858D Light Meter. Upgrade your L-858D's firmware via Data Transfer Software, and you are ready to go.
This transmitter offers wireless radio flash triggering of Godox compatible flashes.

Sekonic's mission is to enable image makers to craft great light in every image, and the Sekonic RT-GX simplifies the process. It helps you quickly dial in your lighting recipe to get to your final image with exacting precision.

Full Radio Compatibility
32 channels (1-32), 16 groups (A-F,0-9) and Wireless ID's to remotely trigger your Godox compatible lights up to 100ft (30 meters) away. You can even wirelessly control the power of modeling lights as well.

HSS Flash Metering
You can now measure the power of HSS. No need to guess what your exposure is when using High-Speed Sync. Tell the meter your ISO and shutter speed, and it will do the rest.

Next Level Flash Analysis
Now you can easily measure the percentage of flash in your images to maintain the desired mix of ambient and flash. Measure flash duration as well to know how much stopping power your lights have to freeze sweat coming off an athlete or the flowing gown of a fashion model.