Float Switch for Sump Pump -100-Foot Water Level Sensor with Honeywell Microswitch and Adjustable Tether Length for Ground Water Bilge Pump and Water Tank – Non-Corrosive PP Casing, Rated to 13 Amps

I purchased the 2059 almost a year ago. It is working great! I use it in a 5000 gallon tank with a solid state relay to run my deep pump. I run it on 12 VDC. The problem with A/C rated switches is that sometimes they have a high resistance when closed, so the relay does not work. Great value product!

I had a simple requirement. To fill a 150 gallon barrel of water when it got low, The pump itself is 110v and a couple of amps required to be switched. I didn't want to create a shock hazard, nor did I want to put any big holes or make some sort of frame to hold a regular float switch. And lastly I didn't want to make this a big project.After doing some research I found nobody makes a float switch that can switch more than a few milliamps without damaging the switch, forcing me to use a relay which means now I need a low voltage power source also for the relay coil. Nor can you avoid having the contacts near the water. Nor will they work without drilling a hole through the side of the tank, or making some frame to hold the apparatus above the water line.This float switch was the perfect answer. it has a very unique design that relies on a big ball bearing rolling back and forth against a fairly hefty microswitch (you can hear it snap on/off inside). The angle of the float is what causes it to roll back and forth. with the adjustable weight attached on the cable as the fulcrum point. I just ran the cable over the top of the barrel slid the weight up/down until I got the desired angle when full/low. And connected the switch to the pump (hot side) and worked like a charm. I was worried about it being a shock hazard. But it looks to be very well thermally sealed shut. (the yellow ridge around it) and it is of a very tough plastic. So I am not worried about it. So the trick is to get the distance from the weight to the float right as that controls the responsiveness of filling/low. And the distance of the weight to the top of the tank to set the height of the filling. Other than that it is trouble free. The switch has both normally closed and open so you can use this to drain or to fill. Took me 5 minutes to install it. But about an hour playing with the adjustment of the weight to get it to fill right up to the top. Since I have to fill and drain to try it out. Be warned this is not a solution if your expecting it keep your tank topped off at all times. The float needs to be some inches above and below the weight before the switch will trigger.

Haven't had it for long but it was easy to install and is working fine.

These seem to be very durable. The control circuit is low voltage, and low current (mA), which works well with a micro switch. Our tanks get down to close to, if not a bit of freezing during the winter, so I am impressed that the switch made it ten years.For us, other manufacturer's switches typically lasted only two or three years. So, yes, a three to five fold improvement.I think that our other float switches have failed in the past by a little water intrusion that results in electrical corrosion over time.Buying replacement switches today! (We always keep an extra in stock.)

Have purchased 3 of these for several different 2000+ gallon water tanks. Have two that have been in use for 2 years, and another for 1 year. So far no issues.

Just purchased and installed in septic tank for alarm. It feels heavy duty, wired right up and works.Unknown how durable it will be.

Product works as intended. But The reason for the low review is that I ordered the 33' switch and a 6' long switch was delivered inside of a package marked as 33'. I was in a bind and had to use it so I made it work at more of my expense. But beware the length's may not be correct when you receive it.

Have not used yet but looks good