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KAI Soil Kit

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Welcome to the cultivation station.

KAI is your gateway to create a thriving environment for your plants! Whether you're a seasoned gardener or a first-time attempter, the KAI Soil Kit is the ideal solution for automating any grow tent.

Soil Kit

This Kit Measures

This soil-focused KAI kit comes equipped with KAI—the Felix Smart controller—and a suite of sensors, including probes that measure:


Acidity (pH)


Dielectric Permittivity (DP)

Ground Moisture

Ground Moisture



Air temperature

Air Temperature

Ground temperature

Ground Temperature

PAR (App feature)

PAR (In-app)

Light intensity (App feature)

Lumens (In-app)

What's In The Box?

Controller & Power Cable

Ethernet Dongle

Felix 1080 Camera

Air Temperature / Humidity Sensor

Ground Temperature / Moisture Probe

Ground pH Probe

KAI Has Automation Styles For Every Desire

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Check-In From Anywhere

The included 1080p HD camera offers an even closer look at your setup, letting you keep an eye on your plant-life from anywhere, at any time. The camera can be easily programmed to timelapse the growth of your plants.

The Felix Smart 1080p HD Camera is shown and a livestream of tomatoes through the Felix Smart application is visible next to it. Text on screen says "Check-in from ANYWHERE"

Create Stunning Timelapses With Ease

"I've had so many people that have been wanting to get an "auto-watering system" ... This makes it so that you could actually have an indoor auto watering system that's going to treat your plants properly."

Detailed Specifications

Material ABS Flame Retardant
A/C Plug Input
100-240V~, max 10A 
A/C Plug Output
100-240V~, total 9A
USB Output
5V, 2.0A
Total Max Watts:
North America: 1100W
Grounded Sockets 8
Size (L x W x H) 28.5cm x 16.8cm x 13.7cm
(11.2" x 5.4" x 6.6")
Available USB Ports
6 - Expandable up to 30 using powered USB hubs
Certifications CE, FCC, ROHS
Intended Use For indoor use only
Waterproof Not Waterproof
Resolution Full HD 1080P - 1920 x 1080P @ 30fps
Compression H.264, MJPEG
Microphone Disabled
Temperature Range 0ºC - 70ºC (32ºF to 158ºF)
Water Use Not Waterproof
Intended Use Indoors, outside of high humidity spaces.
Connector USB
Cable length 1.2 meters (4.5 ft) Extendable to 25 ft with a USB Extension.
Mounts 1/4in – 20 UNC, Adjustable swivel and Velcro.
Certifications FCC, CE, ROHS
Material Silver / Silver Chloride
Reads pH
Range 0 - 14
Resolution +/- 0.001
Accuracy +/- 0.002
Response Time 95% in 1s
Temperature Range  -5°C to 110°C (23°F to 230°F)
Max Pressure 689 kPa (100 PSI)
Max Depth 70m (230 ft)
Connector Felix Smart USB
Cable Length 1 meter (~39")
Internal Temperature Sensor No
Time Before Recalibration ~1 Year
Life Expectancy ~10 Years
Material Stainless Steel, ABS
Reads EC, TDS, Ground Moisture, Temperature, Water Presence
Temperature Range -20ºC to 70ºC (-4ºF to 158ºF)
Electrical Conductivity (mS/m) 0 - 300 mS/m
Degree of Water Saturation in Soil 0 - 100% 
Volumetric Water Content from Dielectric Permittivity:
ε.VWC = 0.002974 * pow(ε,2) + 0.07424 * ε -1.295 : 0 - 100% /8%
Dielectric Permittivity (ε) (Temperature corrected) 1 (Air) : 80 (Water) / 5%
Total Dissolved Solids (ppm) 0 - 2000 ppm
Max Pressure 689 kPa (100 PSI)
Max Depth 70m (230 ft)
Connector Felix Smart USB
Cable Length 2.7m (9 ft)
Time Before Recalibration ~ 2 Years
Water Use Waterproof  
Material ABS
Reads Air Temperature, ~Humidity and Light
Humidity Range 0-100% RH
Humidity Accuracy +/- 2% RH
Temperature Range  0°C to 70°C (32°F to 158°F)
Temperature Accuracy +/- 0.5°C
Light Sensor Photocell
Connector Felix Smart USB
Cable Length 2.7 meters (9 ft)
Water Use Not Waterproof
Intended Use Indoors or Enclosures

Frequently Asked Questions

What happens if my Wi-Fi goes out?

KAI is Wi-Fi compatible, not Wi-Fi dependent. KAI remembers your settings and will continue to utilize your probe/sensor values to automate your environment, even without Wi-Fi connection.

How many devices can be used with KAI?

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