Zooz ZSE42 800LR Water Leak XS Sensor
Small enough to sit under a dishwasher or behind a toilet, on a coin battery, reporting over Z-Wave to the leak recipe.
By Zooz. Specs read from the maker on .
Price and stock: Maker product page (where to buy)
| Chip | Z-Wave 800 series (800LR); earlier version 700 series |
|---|---|
| Battery | 1 CR2450 coin cell, included |
| Operating temperature | 32 to 104°F |
| Size | 2.4 x 1.4 x 0.4 in |
| Water rating | IP66, indoor or outdoor under an eave; cannot be submerged |
| Range | Up to 400 ft line of sight, up to 1300 ft with Z-Wave Long Range |
| Works with Home Assistant | Yes, through Z-Wave JS (Zooz compatible hubs list) |
| Battery life | Not stated by the maker |
| Warranty | 5-year extended warranty once registered |
"Not stated by the maker" means the maker's pages do not say; this shelf leaves it blank rather than guess.
Know before you buy
The Zooz product page still says it runs on a CR2032; the 800LR spec page says CR2450. Check the battery for your hardware version. No built-in siren; Zooz suggests a separate siren for local alerts.
Where each spec was read
- Maker: Zooz support, ZSE42 Water Leak XS Sensor specs read 2026-10-27
- Maker: Zooz support, ZSE42 compatible hubs read 2026-10-27
- Maker: Zooz ZSE42 product page (warranty) read 2026-10-27
Read first
Every store link on this shelf goes to the maker's own page unless a note beside it says it is an affiliate link. The guides on sensor.house name no brand; only these shelf pages do. No maker pays for placement.
Notes drafted with a language model from the maker's pages and checked against them. Product information, not electrical or plumbing advice: a licensed electrician or plumber and your local code decide what is safe in your house.
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