Gic Liquid level Controller 4421AD1 , 240 VAC

This is the only branded, industrial use water controller on Amazon. All the rest available on Amazon are made from hobby kits and unreliable, bought a few, replaced defective ones, couldn’t get even one unbranded one working. Finally bought this one from the seller Mammidi Enterprises. (Ignore the seller ratings, as he sells industrial equipment, and the average consumer is going to have a tough time using the products due to the technicalities of the wiring diagrams or even understanding the instruction manual)For the folks complaining about connections, or saying it's not working, it's simple... Imagine a regular switch, that's 15 and 18. 15 and 18 is not the power for the motor. It's only a switch (relay) that goes on or off depending on the water level.

Product working ok Drain and filling systemSingle sensor and two sensorBut no options low level and high level induction show in this device

Very useful & reliable product. I have used it to control the overhead water tank overflow.

These switches are not compatible with any kind of "Submersible", no were you will find the need of buying a "delay timer relay", if you get that, you need to know how to fix that with the existing starter (no one knows the diagram), if u don't put delay timer - you will burn your machine.I am in touch with two technicians from GIC for last 1 month to know which delay timer I need to buy and how to connect but seems I will have to continue to make follow up with them.Suggest don't look at saving some money and buying these fancy things which you can't install locally

* Product works as expected. I am using to fill the overhead tank only. Sump contacts are used only as "sump low level" protection* Realy useful is the start push button which start the motor if other conditions are safe. This is useful to fill up the tank before a power cut and the motor automatically stops after overhead tank filled up.* I used it with a contactor to protect the controller.* suggest to have a stop push button too.

this is my second purchase after 8 years old one is also working fine and one new purchase for top tank automation. we coneected for top tank filling plus lower tank empty protection all thing work as epected .

Works well after proper installation. 1 star less since it restarts the pump every time after electricity returns after a power cut. Power cuts are quite frequent in our place daily, it ends up running the pump multiple times a day (up to full water level)

Very good and simple product for automatic water level control for home purpose. It is very useful for both sump dry run and overhead tank overflow control in a single module. The quality of the product is excellent.I suggest to the customer to purchase to save water.