NOTE: the version 4 now incorporates an updated sensor which is slightly larger than the original shown in the video, there are no difference's other than physical size!
NO SENSOR MAINTENANCE REQUIRED!
sensor cable length 40cm (designed t...
Reviews
5.0
23 ratings
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Another great reefloat product
Just set up my ATU Pro4… great piece of kit. Adjusted the sensor to suit my glass thickness which was easy…. Good build quality and I really like being able to support a local UK business. Thanks Gordon.
P
Paul · November 8, 2025
Great service
Had some problems setting up (not a fault with design) and contacted Gordon. He called back and talked me through solution. Because of my setup we couldn’t access where I needed to. No problem- Gordon sent me a different sensor and now it’s all working.
Excellent service.
Thank you Gordon.
J
Jim · April 29, 2023
Auto top up kit pro4
So far this is great piece of kit. No sensor in the tank to get dirty or salt encrusted.
I found it difficult to place the control box as I use it on an AIO nano and the cable from the sensor to the control box is very short.
It would be handy to have a line or mark on the sensor to show where it senses the water level but other than that it's perfect, very pleased.