ZEN24 Toggle Dimmer Change Log

Here are the changes and updates we made to the ZEN24 model so far.

VER. 1.0 (released 12/2016)

Original release.

  • Did NOT include neutral jumper
  • Implemented the classic 3-way functionality with a dedicated add-on switch required (NO direct 3-way, do NOT connect to regular on/off switches)

Firmware: 20.16

  • No advanced settings available

VER. 2.0 (released 9/2017)


  • Added neutral jumper and short screws for wall plate
  • Added Direct 3-way solution (no add-on switch needed)

Firmware: 20.15

  • Added advanced settings for toggle control

VER. 2.01 (released 4/2018)

Firmware: 1.05

  • Added OTA firmware updates
  • Added ramp rate control (slow / fast only)

VER. 3.0 (released 4/2019)


  • Updated back cover for easier installation (larger terminal holes)
  • Terminal screws arrive loose (unscrewed) for easier installation
  • Updated wall plate screw installation design (added more room for the screw to fit in easily)
  • Added foam to packaging

Firmware: 3.0

  • Added scene control (2 triggers only)
  • Changed association settings to send separate reports for manual and Z-Wave control
  • Added S2 security
  • Added Built-in Timer
  • Added the ability to reset the switch to factory settings from the device directly
  • Added the ability to control load by toggling the toggle up or down
  • Added full ramp rate control
  • Added a setting to control status after power failure
  • Added minimum and maximum brightness level settings
  • Added double-tap to full / maximum brightness
  • Added double-tap behavior control

VER. 3.01 (released 6/2019)

Firmware: 3.01

  • Added full scene control
  • Expanded double-tap behavior control
  • Added the ability to disable local control


VER. 3.03 (released 8/2019)

Firmware: 3.03

  • Reduced manual control delay related to scene control functionality

VER. 3.04 (released 10/2019)

Firmware: 3.04

  • Extended manual dimming time (from 0 to 100% with paddle press-and-hold) to 4 seconds and added a setting to customize the dimming speed

VER. 3.05 (released 11/2019)

Firmware: 3.05

  • Added a setting to match Z-Wave ramp rate with physical ramp rate

VER. 3.06 (released 12/2019)

Firmware: 3.06

  • Added custom brightness setting
  • Added 3-way switch type setting to use momentary switches (like the ZAC99) in 3-way, 4-way, or 5-way set-ups without configuration limitations and with the ability to dim the light manually from each location

VER. 3.08 (released as OTA 3/2020)

Firmware: 3.08

  • Added a setting to change switch behavior with disabled manual control
  • Added night mode brightness: press and hold the lower paddle for a second to turn the light to low brightness

If your version of the toggle dimmer can be upgraded via OTA firmware updates, you can request a firmware file here, please include your order number for verification!

  • 298
  • 01-Apr-2020