Sekonic

Sekonic 401-626 RT-EL/PX Transmitter Module for L-858D-U

5.0 (3 reviews)

Expand Your Lighting Control: Sekonic Transmitter Module RT-EL/PXThe Sekonic Transmitter Module RT-EL/PX enhances your lighting control capabilities with the L-858D-U Speedmaster Light Meter. This module enables you to trigger and control Lunchroom (Skyport) and Phottix (Strato) enabled lighting ...

$96.95*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Expand Your Lighting Control: Sekonic Transmitter Module RT-EL/PX

The Sekonic Transmitter Module RT-EL/PX enhances your lighting control capabilities with the L-858D-U Speedmaster Light Meter. This module enables you to trigger and control Lunchroom (Skyport) and Phottix (Strato) enabled lighting systems, providing seamless integration and enhanced workflow.

Specifications:

  • Brand: Sekonic
  • Model: 401-626
  • Compatibility: L-858D-U Speedmaster Light Meter
  • Supported Systems: Lunchroom (Skyport), Phottix (Strato)

Key Features

RT-EL/PX for L-858D-U transmitter is compatible with Lunchroom

When working with Lunchroom Triggering and controlling the power level of the light

Radio Channel and groups that can be used with this transmitter module:Lunchroom Channels : 1 to 20 Group : G1 to G4 + ALLPhot tix Channels : 1 to 4Group : A to D

Specifications

Product Type
Transmitter Module
Compatibility
Sekonic L-858D-U Light Meter
Elinchrom Channels
1 to 20
Elinchrom Groups
G1 to G4 + ALL
Phottix Channels
1 to 4
Phottix Groups
A to D
Functionality
Triggering, Power Level Control

Pros & Cons

👍 Pros

  • Compatible with Elinchrom triggering and power level control, offering seamless integration for users of that system.
  • Allows for precise control over the power level of connected lights, enhancing creative lighting possibilities.
  • Supports a wide range of Elinchrom radio channels (1 to 20) and groups (G1 to G4 + ALL), providing flexibility in complex setups.
  • Also compatible with Phottix lighting systems, supporting channels (1 to 4) and groups (A to D).
  • Designed as a transmitter module for the L-858D-U light meter, consolidating metering and triggering into one device.

👎 Cons

  • Requires the Sekonic L-858D-U light meter for operation, meaning it is not a standalone triggering device.
  • Compatibility is limited to Elinchrom and Phottix systems, which means it cannot trigger other brands of strobes.
  • The specific range of the radio transmission is not provided, which could be a factor for large studios or outdoor shoots.
  • The module is primarily for triggering and power control, and does not mention advanced features like HSS or TTL support.
  • Being a module, it is an additional purchase and installation for the L-858D-U, adding to the overall cost of a triggering solution.

Frequently Asked Questions

This transmitter module is specifically designed for use with the Sekonic L-858D-U light meter.
The RT-EL/PX transmitter module is compatible with both Elinchrom and Phottix lighting systems for triggering and power control.
When working with Elinchrom, this module supports channels 1 to 20 and groups G1 to G4, plus the 'ALL' group.
It enables triggering of compatible lights and allows for controlling their power levels directly from the connected light meter.
For Phottix lighting systems, the transmitter module supports channels 1 to 4 and groups A to D.