🌱
Soil Moisture & Trend
Pro-grade TDR capacitive sensing measures exactly how wet or dry your soil is — with a moisture trend indicator showing whether conditions are rising or falling between readings.
Grow smarter,
not harder.
🌿 Up to 20 sensor zones · 100% local · no app needed
SproutKeeper is a complete growing system — the SproutHub receiver, SproutPod range extenders, wireless soil / weather / rain sensors, and smart plugs, all working together to monitor every condition your plants need and act the moment something needs attention.
Up to 20 sensor zones
Soil, temperature, humidity, VPD, DLI, rain, and 5-day weather — all tracked continuously across up to 20 wireless sensors.
Soil mode · Timed Cycle mode
Two automation modes — sensor-driven soil watering or fully configurable timed pump cycles for NFT, DWC, and ebb-and-flow setups.
No download, ever
Open any browser on your phone, tablet, or laptop and type your device name. Your dashboard is live in seconds.
Soil Sensor
USB Mini Pump
【PRO-GRADE TDR ACCURACY】 Powered by Time Domain Reflectometry (TDR) and stainless-steel triple probes — stable, professional-level soil moisture readings that resist interference from salinity or soil composition. IPX5 waterproof. 2×AAA batteries, 8–12 months runtime.
【OUTDOOR WEATHER STATION】 Wireless temp & humidity sensor transmits live outdoor conditions to SproutHub — feeds VPD calculations, freeze alerts, and the 5-day weather display. Battery-powered, weatherproof housing. No account, no API key needed.
【USB MINI WATER PUMP】 Plugs directly into SproutHub’s built-in USB-A relay port. Automatically waters when soil moisture drops below your target — or runs on a timed schedule for hydroponics. Includes tubing. No extra hardware needed.
Complete setup: SproutHub • Wireless Soil Sensor • USB Water Pump • Quartermoon water container (3D-printed reservoir designed for SproutKeeper)
Who it is for
Every kind of grower.
From a single houseplant to a multi-zone growing operation — SproutKeeper scales with you.
| Grower Type | How SproutKeeper Helps |
|---|---|
| Home Gardeners | Automated watering, temperature alerts, and grow light control — set it and forget it. |
| Indoor Growers | Precise humidity, light, and climate automation to keep every condition dialed in. |
| Hydroponic Growers | Timed pump cycles — configurable on/off schedules for NFT, DWC, ebb-and-flow, and wick systems. No soil sensor required. |
| Small Farms | Scalable automation across multiple zones and devices without complex infrastructure. |
| Busy Plant Parents | Never lose a plant to neglect — SproutKeeper watches 24/7 so you don't have to. |
Live dashboard
Your garden.
Any browser.
Open any browser and type sk.local — your full dashboard is live in seconds. No app, no login, no cloud.
Sensor card with plant profile, moisture, DLI & battery
Event editor — conditions, plug control, timers & voice/SMS/email alerts
Click any plant badge — see scientific name, targets & care notes
Plant Library — 343 species with care profiles, scientific names & DLI targets · Browse the library →
What it monitors
Eyes on your garden,
around the clock.
SproutKeeper continuously tracks every condition your plants need to thrive — and takes action the moment something is off.
🌡️
Temperature, Humidity & VPD
Real-time ambient readings plus Vapor Pressure Deficit (kPa) — the key metric for plant transpiration and growth rate. Color-coded VPD zones with actionable tips right on the dashboard.
☀️
Sunlight, Lux & DLI ?
Precision lux measurement plus Daily Light Integral (DLI) — the cumulative light dose your plants receive each day. Automate grow lights based on real lux or trigger events when DLI targets are hit.
🌦️
Weather & 5-Day Forecast
Live outdoor temperature, humidity, and a 5-day weather forecast built into the dashboard. Freeze and frost alerts warn you days ahead — with exact temperature and the day it's expected.
🌧️
Rain Gauge
Tracks rainfall totals for today, yesterday, the last 7 days, month, and year-to-date. Automate events based on rain thresholds — skip watering when nature already did the work.
🔋
Battery & Signal
Each sensor reports its battery voltage and signal strength. SproutKeeper alerts you before a battery goes offline — and shows signal % and source (hub direct or SproutPod relay) per sensor.
📊
Live Dashboard
View all sensor readings, plug status, and automation activity from any browser on your local network. Drag cards to reorder, hide any card, assign sensors to named locations, and assign a plant profile to any soil sensor — SproutKeeper shows moisture and DLI targets right on the card and warns when conditions drift outside range. Sensor Lock keeps your dashboard clean.
📡
Zero-Pairing Sensors
Sensors appear on the dashboard automatically the moment they transmit — no pairing codes, no Bluetooth, no Zigbee. Name a sensor, place it in the ground, and it shows up every time, even after a battery swap.
📚
Plant Library
Browse care profiles for 343+ plants — vegetables, herbs, fruits, tropicals, succulents, and more. Every profile includes target moisture range, Daily Light Integral targets, watering notes, growing tips, and the full scientific name. Assign any plant to a soil sensor and SproutKeeper monitors against its ideal conditions. Browse the library →
Plant Library · Built In
343+ care profiles,
wired to your sensors.
SproutKeeper ships with a complete plant database — every species has a moisture target, DLI target, watering notes, and scientific name. Assign any plant to any sensor with one tap and SproutKeeper does the rest.
1
Browse the Library
Search 343+ plants across 10 categories — Fruit, Vegetable, Herb, Tropical, Succulent and more. Every card shows moisture range, DLI rating, watering notes, growing tips, and scientific name.
2
Assign to a Sensor
Tap the 🌱 badge on any soil sensor card. Search by name or category, pick the plant — its ideal moisture and DLI targets load onto the card immediately. One tap, done.
3
SproutKeeper Monitors
Live warnings appear the moment conditions drift — too dry, too wet, too little light. Click the plant name on any card to see the full care profile popup with scientific name.
Browse & search 343 plant profiles at sproutkeeper.com/plant-library.php
Assign any plant to any sensor in one tap
Click the plant badge — full care profile & scientific name
🌿 343 plants
📂 10 categories
🔬 Scientific names included
⚡ No setup — built into every hub
Browse the Plant Library →
Two growing modes
Built for every way you grow.
Sensor-driven soil automation or fully configurable timed pump cycles — SproutKeeper adapts to how you grow.
Soil / Moisture Mode
The classic way to grow. SproutKeeper monitors soil moisture and automatically triggers your watering system when things get too dry. Set your thresholds once — SproutKeeper handles it from there.
Timed Cycle Mode
No soil sensor needed. SproutKeeper runs your water pump on a fully configurable on/off schedule — keeping roots oxygenated and nutrients flowing for NFT, DWC, ebb-and-flow, and wick setups.
Smart plug automation
Automate any device.
No electrician required.
SproutKeeper controls 120V devices automatically through smart plugs — pumps, lights, fans, valves, and more. It even comes with its own plug, designed to work together perfectly right out of the box.
Also works with
-
⚡
Kasa (TP-Link)Set it up once in the Kasa app — SproutKeeper automatically finds it on your network, no IP addresses or extra configuration needed.
-
⚡
ShellyHTTP/REST control — reliable, fast, and fully local without any cloud dependency.
Devices You Can Automate
- 💧USB mini water pump — directly from the hub or SproutPod USB port; trigger on soil dryness or timed schedule
- 💡USB grow light — 5V grow light via hub or remote SproutPod USB relay; timer or lux/DLI triggered
- 🚿Solenoid valves — inlet & outlet automation via 120V smart plug
- 🌀Fans & ventilation — activate on temp, humidity, or VPD
- 🔌Heaters, CO₂ generators, UV sterilizers, and more
SproutPod range extender
Extend your reach.
Anywhere in your garden.
The SproutPod is a wireless range extender that picks up soil sensors too far from the hub and relays their data back — while also adding a local USB relay port for pumps or grow lights right at the planting zone.
📡
Wireless Sensor Relay
SproutPod listens for soil sensor packets and forwards them to the hub over WiFi — extending usable range to the far corners of your growing space. The hub shows signal source (direct or via pod) per sensor.
🔌
USB Power Output
Each SproutPod has a built-in USB-A relay port — controllable from the hub just like a smart plug. Run a mini water pump or 5V grow light right where your plants are, triggered by any soil sensor event.
🌐
Fully Integrated
SproutPod appears on the hub dashboard like any other device. No separate app, no separate configuration. Assign automation events to the pod USB port from the same event editor used for smart plugs.
🔢
Scale to 20 Zones
Deploy multiple SproutPods across a large growing space. Each pod relays sensors from its local area — giving the hub coverage across up to 20 sensor zones without extra hardware complexity.
Home Assistant integration
All your sensors.
In Home Assistant.
Connect SproutKeeper to Home Assistant over MQTT and every sensor appears automatically — no YAML, no manual configuration. Build any automation you want using the data SproutKeeper sends.
Auto-discovered entities
- 🌱Soil Moisture41 %
- 🌡️Temperature22.4 °C
- 💧Humidity58 %
- 🌬️VPD0.82 kPa
- ☀️Light / DLI3 400 lx · 18.2
- 🌿Fertilizer (EC)312
- 🌧️Rain Today4.2 mm
- 🔋Battery4.08 V
- 📡ConnectivityOnline
All entities appear in Home Assistant automatically on first connection — no YAML needed.
⚡ MQTT Discovery
🏠 100% local
🔄 Live updates
📴 Offline detection
Example automations you can build in HA
Soil moisture drops below 30%
Auto-water with any smart plug
Turn on a pump connected to any HA-compatible plug — Sonoff, TP-Link Kasa, IKEA, Shelly — until moisture recovers.
Temperature exceeds 30 °C
Activate fans or AC
Trigger any HA device the moment temperature goes out of range — fans, portable AC units, blinds, whatever you have.
Light level below 500 lx after sunrise
Switch on grow lights
Supplement natural light on cloudy days automatically — and turn lights off when natural lux recovers.
Device goes offline
Alert via any HA notification
SproutKeeper's connectivity entity goes to "Offline" automatically when the device loses power or WiFi — trigger any HA alert or action.
Alerts & notifications
SproutKeeper comes to you.
No need to check an app. With a SproutKeeper subscription key ($24/year), SproutKeeper reaches the outside world — sending alerts and sharing a live remote dashboard wherever you are.
Remote Dashboard
A live read-only mirror of your local dashboard, accessible from anywhere with internet — phone, tablet, laptop. Check every sensor reading while you're away from home.
Voice Calls
SproutKeeper calls your phone and tells you exactly what happened in plain language. "Your soil moisture is too low." No app, no login — just a call.
SMS Text Alerts
Get a text the moment an event fires. Fast, direct, and no app required — just a plain text message straight to your phone.
Email Notifications
Detailed alerts with the sensor reading that triggered the event, the action taken, and current conditions. No SMTP setup — built-in delivery service included.
All four features above require a SproutKeeper subscription key — $24/year. Local monitoring, automation, and smart plug control are always free.
Every alert can be delivered by voice call, email, or SMS — your choice:
Soil too dry or too wet
Moisture trend rising or falling
Temperature out of range
Humidity too high or low
VPD out of ideal zone
Light or DLI too low
Rain today over threshold
Freeze or frost forecast
Nutrient levels off
Pump or lights turned on
Fan activated
Any automation event
Works with
Compatible devices & accessories.
SproutKeeper works with a growing list of sensors, smart plugs, and platforms — all locally, with no cloud required.
Sensors
- ✓ SproutKeeper Wireless Soil Sensor
- ✓ SproutKeeper Outdoor Weather Station (TX16)
- ✓ AcuRite Wireless Rain Gauge (model 02446M)
- ✓ SproutPod Range Extender
Smart Plugs & Accessories
- ✓ SproutKeeper Smart Plug
- ✓ TP-Link Kasa Smart Plugs (EP10, EP25, KP115, KP125)
- ✓ Shelly Smart Plugs (Plug S, 1, Plus series)
- ✓ USB Mini Water Pump
- ✓ USB Grow Light (any 5V USB)
Platforms & Browsers
- ✓ Home Assistant (MQTT auto-discovery)
- ✓ Any MQTT broker
- ✓ iPhone / iPad / Android
- ✓ Mac / Windows / Linux
- ✓ Amazon Fire tablets
Pricing
Lock in your launch price.
Order now at introductory pricing — retail prices go up at launch. Local features always free. Add remote dashboard, voice calls, SMS & email alerts for just $2/month.
Additional soil sensors available separately. Each hub supports up to 20 wireless zones.
Hub + Soil Sensor
Introductory Price
Retail $169
$119
one-time — save $50 at launch
📦 Ships July 2026
The SproutHub and one wireless soil sensor — everything you need to start monitoring temperature, humidity, VPD, light, DLI, and soil moisture right away.
- SproutHub + 1 soil sensor
- Soil moisture, temp, humidity, VPD, DLI
- 5-day forecast + freeze/frost alerts
- Rain gauge & weather station
- Smart plug automation (Kasa, Shelly)
- Zero-pairing sensors — appear automatically
- Sensor Lock — blocks stray & corrupted sensors from nearby areas
- Home Assistant MQTT auto-discovery
- Backup & restore all settings
- OTA firmware updates from the dashboard
- No subscription for local features
Complete Kit
Best Value · Introductory Price
Retail $199
$139
one-time — save $60 at launch
📦 Ships July 2026
SproutHub + soil sensor + mini water pump — the complete auto-watering kit. Place the sensor, connect the pump, and SproutKeeper waters your plants automatically.
- Everything in SproutHub + Soil Sensor
- Mini USB water pump included
- Pump connects directly to SproutHub USB port
- Auto-waters on soil moisture events
- Ready to grow on day one
Subscription
$24
per year — just $2 a month
For just $2 a month your SproutKeeper reaches the outside world — remote dashboard access, voice calls, SMS, and email alerts, all without SMTP setup.
- 🌐 Remote read-only dashboard — check your garden from anywhere
- 📞 Voice call alerts — SproutKeeper calls your phone
- 💬 SMS text message alerts
- 📧 Built-in email notifications — no SMTP needed
- Cancel anytime
Easy setup
Up and running in minutes.
No tech degree required.
SproutKeeper runs a built-in web interface accessible from any phone, tablet, or computer on your local network. No app to download, no cloud account required.
01
Power On
Plug in SproutKeeper and connect it to your Wi-Fi network using the simple setup portal.
02
Open a Browser
Go to yourdevice.local from any phone, tablet, or computer — no app download needed.
03
Configure
Set your thresholds, growing mode, smart plugs, and notification preferences from one clean screen.
04
Grow
SproutKeeper handles the rest. Live readings, automatic actions, and instant alerts — 24/7.
Why SproutKeeper
Everything you need.
Nothing you don't.
Purpose-built for growers — not a generic IoT platform bolted onto a plant pot.
✓
Up to 20 sensor zonesWireless soil sensors across your whole growing space — plus SproutPod range extenders where you need them
✓
VPD monitoring (kPa)Vapor pressure deficit tracked continuously — color-coded zones with actionable tips right on the dashboard
✓
5-day forecast + freeze alertsLive weather and upcoming frost/freeze warnings with exact day and temperature — before damage occurs
✓
DLI & moisture trendDaily Light Integral and moisture trend arrows — professional grow metrics, zero extra hardware
✓
USB pump & grow light controlBuilt-in USB relay powers a mini water pump or grow light directly — no 120V smart plug needed
✓
Smart plug includedComes with the SproutKeeper plug — or use Kasa and Shelly plugs you already own
✓
Voice, SMS & email alertsSproutKeeper calls, texts, or emails you — no app to check, no notification to miss
✓
Home Assistant readyMQTT auto-discovery — all sensors appear in HA instantly, no YAML required
✓
Backup & restoreAll sensor names, events, config, and RSSI calibration backed up via the API — restore in seconds
✓
No subscription for local featuresYour data stays on your network — no cloud required for any core functionality
✓
Two growing modesSoil/moisture sensor-driven watering, or Timed Cycle for NFT, DWC, and ebb-and-flow — configure once, done
✓
Automatic firmware updatesSproutKeeper keeps getting better over the air — no USB cable, no manual steps
Our Philosophy
Local-first, always.
OzBits is a technology company specializing in smart home and Internet of Things devices that prioritize local-first control over cloud-based subscriptions. Our product philosophy centers on user privacy and independence, offering hardware like the SproutKeeper plant monitor and specialized smart plugs that function without external accounts or internet dependencies.
Our roadmap spans kitchen safety sensors, garage controllers, and commercial-scale agricultural tools designed for professional fleet management — all built around open APIs and straightforward web interfaces, for consumers who want reliable automation without the subscription tax.
Your network, your rules
SproutKeeper runs entirely on your local network. No data leaves your home. No account required for any core feature.
No lock-in
Works with Kasa, Shelly, and Home Assistant out of the box. Standard protocols — no proprietary cloud bridge required.
Built for growers
Every feature was designed around what growers actually need — not what looks good in a spec sheet.
Maker-built
Made by engineers who grow plants. We eat our own cooking — every feature ships because we needed it first.
SproutKeeper Podcast
OzBits, SproutKeeper & the Local-First Rebellion
The story behind why we build the way we build — and why local-first matters more now than ever.
🇺🇸 English — OzBits ends cloud dependency with SproutKeeper
🇺🇸 English — OzBits, SproutKeeper & the Local-First Rebellion
🇲🇽 Español — Tu casa inteligente sin la nube
🇨🇳 中文 — 无需联网的硬核植物管家
🇵🇭 Filipino — OzBits at ang lokal na smart home
Coming soon
The roadmap.
SproutKeeper is actively growing. Here's what's on the way.
Mobile app
Cloud dashboard for remote monitoring
Data logging & growth history charts
Additional smart plug brands
GrowSense commercial fleet edition
Get in touch
We'd love to hear from you.
Questions about SproutKeeper, setup help, partnership ideas — drop us a message and we'll get back to you.
Send us a message
✅
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Your plants deserve a guardian.
SproutKeeper watches, measures, automates, and alerts — helping you grow healthier plants with less guesswork and zero worry.