IQ Smart Dimmer (QZ2142-840) manual for Z-Wave

The following is an overview of the user manual for the Z-Wave product IQ Smart Dimmer (QZ2142-840)from Qolsys. To view other Z-Wave products and manuals from Qolsys follow that link.

  1. Overview
  2. Security
  3. Features
  4. Installation instructions


IQ Smart Dimmer
SKU Code
The IQ Smart Dimmer can be used to turn any outlet into a smart outlet to turn lamps On, Off, or control dimming of any lamps with dimmable light bulbs. Each Z-Wave ™ device also serves as a repeater in the Z-Wave network, extending and improving the mesh network in the installed location.
The IQ Smart Dimmer is a Z-Wave Plus ™ certified device and includes S2 security and SmartStart. You can now add this device securely and with ease using QR code on the box or device.
Version #
HW: 1 FW: 1.00 was the version certified
Certification #
Z-Wave Version


As a Z-Wave Plus certified product, IQ Smart Dimmer supports Z-Wave S2 security. The following security modes are directly supported:

  • S2 Authenticated
  • S2 Unauthenticated


Qolsys describes IQ Smart Dimmer as having the following features:

  • FLiRS capable
  • Supports Network Wide Inclusion
  • Supports Z-Wave Explorer Frames
  • Supports Z-Wave SmartStart allowing you to setup the product simply by scanning its QR code via

Installation instructions

SmartStart location

SmartStart QR code's location as follows: On the packaging box and top of the outlet

When prompted by your primary controller, click the button three times in one second

When prompted by your primary controller, click the button three times in one second.

Factory reset IQ Smart Dimmer

Press click Z-Wave button 3 times quickly, and hold for at least 10 seconds at the third time to restore the device to the factory

Please note that this is a user manual IQ Smart Dimmer from Qolsys is provided as is and without warranty; all information contained herein is provided by the manufacturer or the certifying body. The information provided is for reference only and is not intended to be used as a substitute for professional advice. only warrants and is only able to support products purchased directly from us. If you have IQ Smart Dimmer and have not purchased it from us, please contact the manufacturer directly with any further questions you may have.