Zooz ZSE44 Temp/Humidity XS Sensor

Quick verdict

A tiny, affordable Z-Wave temperature and humidity sensor. Stick it in a basement, wine cellar, or bathroom and let Home Assistant track conditions and trigger automations. No display, but that keeps it small and cheap. Good for building out environmental monitoring across the house.

Standout: Tiny Z-Wave temperature and humidity sensor. Stick it anywhere for local environmental monitoring.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• tiny XS form factor with adhesive mount, so you can place it anywhere without bulk
• reports both temperature and humidity as separate Home Assistant entities
• configurable reporting thresholds so it only sends updates when values actually change

Reasons to hesitate

• battery is sealed in the XS design and is not user-replaceable
• no display, so you need Home Assistant or a dashboard to read the values
• reporting intervals affect battery life, and aggressive reporting drains faster

Best for

• monitoring temperature and humidity in wine cellars, server rooms, crawl spaces, or greenhouses
• HVAC automation triggers, like turning on the dehumidifier when humidity passes a threshold

Avoid if

• you want a sensor with a built-in display for at-a-glance readings
• you need fast, frequent updates, since battery sensors have reporting intervals

Privacy and local-control notes

Battery-powered Z-Wave sensor. No cloud, no internet needed. Temperature and humidity data stays local.

Home Assistant support: supported · integration path: Z-Wave JS.

Buying reality check

Price notes: Cheap enough to put one in every room. Budget-friendly environmental monitoring for Z-Wave networks.

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