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Sekonic RT-GX Godox Transmitter Module

Brand: SEKONIC

MFR: 401-628

Price Available Upon Request
  • For Speedmaster L-858D-U Light Meter
  • Adds Godox Radio Triggering
  • Frequency: 2.4 GHz
  • Access to 32 Channels and 16 Groups
  • Range: 98.4'
  • HSS Flash Metering Support
  • Adjust Modeling Light Power

Items Included


  • Sekonic RT-GX Godox Transmitter Module
Not in stock - Order now and we'll deliver when available - Normally ships in 4-6 weeks

Add a 2.4 GHz Godox-compatible radio triggering protocol to your Speedmaster L-858D-U light meter with this RT-GX Godox Transmitter Module from Sekonic. Able to be fitted into meter's housing, this module provides multiple functions beyond triggering, including access to 32 channels and up to 16 groups and Wireless IDs for remote triggering within a 98.4' range. This radio control also permits adjusting the modeling light power, supports high-speed sync (HSS) flash metering, and enables Godox users to more easily measure the ambient-to-flash light ratio and flash duration.


Sekonic RT-GX Specs

Frequency2.4 GHz
Channels and Groups32 Channels, 16 Groups
Range98.4' / 30 m
Dimensions1.2 x 0.4 x 1.2" / 3 x 1 x 3 cm
Weight3.2 oz / 90.7 g

Packaging Info

Package Weight0.085 lb
Box Dimensions (LxWxH)3.1 x 2.2 x 1.1"

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Items Included


  • Sekonic RT-GX Godox Transmitter Module