Z-Wave Long Range USB Stick ZST39 LR - DIY Smart Home

In this review of the Z-Wave Long Range USB Stick ZST39 LR the bottom line is clear: this is a specialist tool for experienced DIY smart home builders who need extended Z-Wave range and advanced control. The reviewer found it delivers the key benefit - improved network reach and full 800 series feature support - when used with compatible home automation platforms like Home Assistant or HomeSeer, but warns that it is not for beginners and requires careful handling of firmware and NVM to avoid bricking the device.

Key Features

• Z-Wave Long Range: Extends network coverage up to about a mile where the host software and end devices support the Long Range implementation, improving connectivity to outbuildings and distant sensors.
• 800 Series chipset: Brings the latest Z-Wave Plus and protocol improvements so users can access new library commands and modern Z-Wave behavior.
• Software compatibility: Works well with popular DIY systems such as Home Assistant (with JS) and HomeSeer, enabling flexible integration into custom home automation setups.
• OTA firmware updates: Supports over-the-air updates via the Zooz ecosystem, allowing maintenance of the stick without physical reprogramming when done through supported channels.
• Dedicated host requirement: Designed for use with a dedicated PC, laptop, or Raspberry Pi running your chosen home automation software, giving full local control over the Z-Wave network.

Who It's For

The ZST39 LR is aimed at advanced users and integrators who are comfortable with command-line tools, Z-Wave network management, and occasional troubleshooting. It is an excellent choice for someone migrating to the 800 series who needs longer range and full protocol control with Home Assistant, HomeSeer, or similar platforms.

This stick is not suitable for beginners or casual buyers who expect plug-and-play simplicity. Users who cannot ensure firmware provenance or who may rely on NVM backups from older 500/700 series sticks should look elsewhere to avoid the risk of permanently bricking the device and voiding warranty coverage.

Pros & Cons

Pros

• Impressive range improvements for connecting outbuildings and remote sensors.
• Straightforward integration with Home Assistant and HomeSeer for users who know how to configure Z-Wave controllers.
• Good long-term value for DIYers who need advanced Z-Wave features and OTA update support.

Cons

• Not beginner friendly; requires advanced Z-Wave and computer knowledge to use safely.
• Applying NVM backups or unofficial firmware can brick the stick, so strict adherence to Zooz support guidance is mandatory.

Specifications

Product	Z-Wave Long Range USB Stick (ZST39 LR)
Series	800 Series Z-Wave Long Range
Compatibility	Home Assistant, HomeSeer and other DIY home automation software
Host required	Dedicated PC, laptop, or Raspberry Pi (sold separately)
Firmware	Supports OTA updates via Zooz support portal only
Target user	Advanced users with Z-Wave and programming experience

Our Verdict

The ZST39 LR is a competent, specialist controller that delivers meaningful range and protocol advantages for experienced DIYers who run Home Assistant or HomeSeer. It represents good value when used correctly, but the steep technical requirements and fragile update/NVM restrictions mean only knowledgeable users should buy it.

Frequently Asked Questions

Can I use this stick with Home Assistant?
Yes, it integrates with Home Assistant (JS) and is reported to be recognized quickly, but you must configure the controller within your automation software.

Will NVM backups from older sticks work?
No. Applying NVM backups from 500 or 700 series sticks can brick the device; only follow Zooz support guidance for backups and updates.

Does it actually improve range?
Users report markedly improved connectivity for outbuildings and distant devices when both the stick and the end devices support Z-Wave Long Range.