Being able to switch on and off your devices is one of the key feutures requred for any controller, Here we use wireless switch plugs that also contain an energy monitor.
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The come in many differnt forms and price ranges but essentially all do the same thing.
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Marine assistant uses Tuya system for it wireless options, Other options work too but the guides here are based on the Tuya system.
120/240V Switch + Power monitor
Wireless sensor (Tuya)
An air quality sensor for reef aquariums measures parameters like COâ‚‚ levels, humidity, and VOCs (volatile organic compounds). It works by using chemical, optical, or electrochemical sensors to detect gas concentrations in the air. Monitoring air quality is important because high COâ‚‚ levels can lower aquarium pH, affecting coral health. Proper ventilation and air quality help maintain stable tank conditions, especially in closed environments with COâ‚‚ reactors or calcium reactors.
VOCs (Volatile Organic Compounds) are important to monitor around reef aquariums because they can negatively impact water quality and marine life health. VOCs are emitted from household products like paints, cleaners, air fresheners, and adhesives. When these compounds evaporate into the air, they can dissolve into the aquarium water
Hardware conection
How its conected
Hardware conection is this case is easy, ensure it is mounted in an area around the tank. I like to mount them towards the lid of the tank as this is where most of the gas exchange will take place.
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I Prefer the ones that plug into a USB socket as they dont require changing batteries.​
Software setup
Getting set-up
Connecting tuya devices is quite simple, you will need to download the app relivant to your sensor, For marine assistant I use Tuya devices so I use their app too. Once you have the app downloaded you will need to put the device into pairing mode and search for it in the app. Follow the instructions supplied.
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​Once you have it set-up in the app you can move onto adding the device into Home Assistant. First you will need to add the Tuya integration if you havent already.
Go to Settings then Devices and you should see the Tuya icon as pictured.
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Click on ADD, You will be presented with a pop-up window where you will need to input your user code.
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In the App look for your User id code and input it here.
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I found it to be under settings, account and security then towards to bottom of that page.
Photos...
Tuya Air quality sensor (Front)
Tuya Air quality sensor (Back)
Tuya Air quality sensor mounted with usb power
Links
Here are a few links to where you can purchase your sensors, click the link depending on your location.
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Worldwide link generally takes longer to be delivered but is a little cheaper. Better if you want to bulk order.
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Me Personnaly I order most of my stuff from Aliexpress, it normally gets here fairly quickly and tends to be a little cheaper.
If I need something quick I order from amazon.
Full disclosure: some of these links are affiliate links, clicking them and purchasing though my links helps me support the project.