Open Home KitsA smart home you understand and own
Compare both paths

A guided first smart-home setup

See key home conditions at a glance.

Choose up to five temperature-and-humidity sensors, five open/close sensors, and five water-leak sensors in any combination, with at least one sensor total.

One foundation. Two radio paths. Three sensor types.

$149once for the guided product; hardware is separate
Build your sensor mixPreview the step-by-step guide

One guide handles every supported mix. Complete only the modules for your selected radio and categories above zero, then repeat the device cycle for each sensor.

The path from choice to proof

Know what happens before you start.

  1. 1

    Choose your radio and mix

    Choose Zigbee/ZBT-2 or Z-Wave/ZWA-2, select 0–5 of each sensor type with at least one sensor total, and write down a plain location name for each one.

  2. 2

    Buy from the exact list

    Choose one of the two supported models for each selected category, then buy Green, the matching radio, and the sensors directly from their sellers.

  3. 3

    Build the foundation once

    Start Green and configure the selected radio through ZHA or Z-Wave JS. The same foundation supports every selected category.

  4. 4

    Complete only your modules

    Skip any category with a count of zero. For each selected sensor, repeat pairing, naming, placement, and verification one device at a time.

  5. 5

    Test and keep the undo path

    Prove each sensor at its final location, optionally configure up to three notification-only automations, restart once, and keep the instructions for making everything quiet or removing the Starter additions.

Build your Starter

Choose one radio, then 0–5 of each sensor type.

Pick any combination, with at least one sensor total. Your choices stay in this browser and continue with you to the fit check. The fixed $149 price covers one reusable guide for the complete mix.

Choose a Starter radio path

Your Starter plan

0 sensors total

Open Home Kits guided product
$149
Green + Home Assistant Connect ZBT-2
about $248
Selected sensors
about $0
First year without optional Cloud
about $397
Optional Home Assistant Cloud
about $65/year
First year with optional Cloud
about $462

Estimates use the currently listed supported-model prices. Tax, shipping, batteries, mounting supplies, promotions, and seller price changes are not included. The seller's checkout controls the final hardware price.

Choose at least one sensor

What the guided product includes

A clear path around the hardware you choose.

  • 01

    A free self-serve fit check before purchase

  • 02

    A live cost planner for your exact category counts

  • 03

    An exact shopping list for Green, either supported radio, and two model choices per sensor category for that radio

  • 04

    One reusable guide with radio branches and skip-or-repeat modules for every possible Starter mix

  • 05

    Plain-language pairing, naming, placement, and verification steps

  • 06

    Three optional notification-only automation templates, with pause, test, and complete-undo steps

  • 07

    Help creating and testing up to three simple notification-only automations, using the same three included email replies

Three supported sensor types

What are the sensors, and what do they do?

Choose Zigbee or Z-Wave, then pick either supported model in every category you use. Do not mix protocols in one Starter plan.

Choose 0–5

Temperature + humidity sensors

See room readings in Home Assistant, with an optional informational comfort-range notification.

Zigbee · two supported choices

ThirdReality 3RTHS0224Z Temperature and Humidity Sensor Lite$19.99 each when checked. Works with Home Assistant certified; a compatibility-qualified Zigbee option.

SONOFF SNZB-02P Temperature and Humidity Sensor$16.90 each when checked. The maker documents Zigbee and Home Assistant support.

Z-Wave · two supported choices

Zooz ZSE44 800LR XS Temperature and Humidity Sensor$29.95 each when checked. Representative ZWA-2 path; Graham uses this exact model with Z-Wave JS.

Zooz ZSE11 800LR Q Sensor$37.95 each when checked. Compatibility-qualified Z-Wave JS option that also exposes motion and light.

Choose 0–5

Open + close sensors

See whether a chosen door or window is open, with an optional stayed-open reminder.

Zigbee · two supported choices

ThirdReality 3RDS17BZ Door and Window Sensor$19.99 each when checked. Works with Home Assistant certified; a compatibility-qualified Zigbee option.

SONOFF SNZB-04P Door/Window Sensor$15.90 each when checked. The maker documents Home Assistant use through ZHA.

Z-Wave · two supported choices

Zooz ZSE41 800LR XS Open/Close Sensor$25.95 each when checked. Representative ZWA-2 path; Graham uses this exact model with Z-Wave JS.

Shelly Wave Door/Window LR$34.99 regular price when checked. Compatibility-qualified Z-Wave JS Long Range option; verify the US-region package.

Choose 0–5

Water-leak sensors

See wet or dry state and optionally receive a convenience notification. This is not monitoring or guaranteed property protection.

Zigbee · two supported choices

ThirdReality 3RWS18BZ Water Leak Sensor$20.99 each when checked. The maker lists Home Assistant compatibility.

SONOFF SNZB-05P Water Leak Sensor$17.91 sale price when checked. The maker documents Home Assistant use through ZHA or Zigbee2MQTT.

Z-Wave · two supported choices

Zooz ZSE42 800LR XS Water Leak Sensor$25.95 each when checked. Representative ZWA-2 path; Graham uses this exact model with Z-Wave JS.

Aeotec Water Sensor 7 Basic$34.99 each when checked. Compatibility-qualified Z-Wave JS mesh option with a wired probe; it is not Long Range.

Human help, with clear edges

Three replies cover the Starter as a whole.

  • The Starter includes up to three setup-specific replies by email, requested within 14 days after successful paid order confirmation. The same three-reply pool covers foundation, sensors, and help creating or testing up to three simple notification-only automations.
  • If required Starter hardware is delayed, order it and email us during the first 14 days. The support and refund periods restart as a full 14 days when the last required item arrives.
  • Calls, chat, screen sharing, remote access, physical installation, open-ended network repair, equipment-control automations, and open-ended custom automation design are not included.
  • We aim to reply within two business days. Refund and hardware-delay notices do not use a troubleshooting reply.

Refund timing

The Open Home Kits charge can come back.

The full amount paid to Open Home Kits, including tax collected by Open Home Kits, is refundable for 14 days after successful paid order confirmation. Hardware, seller shipping, seller-collected tax, Home Assistant Cloud, and other third-party charges are excluded.

Keep the limits in view

Useful information is not monitoring.

  • You buy and physically install the hardware; we do not perform wiring, electrical, repair, or home-network work.
  • We do not ask for passwords, recovery codes, remote-access links, or full diagnostic archives.
  • The selected sensors and optional notifications are information and convenience tools, not monitoring or emergency response.
  • Water-leak state and notifications do not guarantee detection or prevent property damage.
  • Temperature and humidity readings are not for health, food, pet, freeze, mold, or equipment-protection decisions.
  • Product links are direct and non-affiliate; sellers control stock, price, shipping, and tax.

Need something beyond Starter?

Tell us what you want Home Assistant to do.

Open Home Custom starts with an email and a written quote—never a mystery checkout.

Explore Open Home Custom