










Never Stopped Moving Forward
We’ve been listening to our customers and continuously improving our aquarium water quality testing products.
Now, we’re introducing a brand-new product, fully upgraded from the monitor to the probe to the app.


Exclusive Kactoily App
With the Kactoily App, you can check water quality anytime, anywhere, receive instant notifications, and review historical trends—bringing true smart monitoring to your fingertips.


Multi-Functional
Whether it’s a freshwater or saltwater aquarium, fish pond, hydroponics system, agriculture, or aquaculture, the Kactoily Smart Monitor provides accurate and reliable water quality data.


Worried about Your Fish while Traveling?
Set custom notifications and review daily history logs to easily track water quality changes over time.
FAQs
What’s the difference between the Standard and Long-Range versions?
Both versions share the same features, differing only in the connection range between the probe and the display.
Why are there some white marks on the probe when I received the product? Has this product been used?
Not at all.
The white marks are from the protective solution we applied to the sealed protective cover to help preserve the probe.
The protective solution is saturated, volatile, and easy to crystallize. Once the solution has overflowed and volatilized, it appears as white crystals. Simply rinse the probe gently with clean water to remove the crystals and ensure proper functionality.
Does the monitor emit current into the water when collecting, processing, and sending data? Will it affect the fish?
Not at all!
We use high-frequency forward and reverse pulses that don't send an electric current into the water.
What does it mean if it shows "!" on the monitor?
It means that the display and probe have been disconnected.
In this case, the display cannot receive data from the probe. Please shorten the distance between the display and the probe.
How deep do I need to place the probe underwater?
Do not submerge the upper part of the probe during use. While the probe is waterproof, excessive depth may expose it to high water pressure and reduce its lifespan. Ensure the probe does not go beyond the maximum water level line.