6 Pieces Plastic PP Float Switch Fish Tank Liquid Water Level Sensor,Model: DP5200

I bought these to replace a balky float switch, which was used as part of an auto-fill setup to maintain the water level in my pond. These have worked flawlessly for a year. I didn't hesitate to chose an offer to buy 6, assuming to need spares. So far, these spares are waiting for some other application.

I love these things for checking different water levels in my aquarium. They are easy to solder wires to and connect to an aquarium controller and I have never had one give me a false reading. These have saved me from having problems with my aquarium many times

I decided to test it in my sump basin after a few months and high water was unable to move the float because it was somehow stuck, however it not obstructed. I cut up a piece of pipe insulation and glued it around the float to give it more buoyancy and hopefully help it get unstuck on its own. It must be the material that it's made of that is causing this. Original review: Unlike other ones that I've bought and returned, the magnet on these is not exposed on the inside of the doughnut that will cause it to rust. They work as expected.

I have two of these in an outdoor pond for over 5 years and they have performed flawlessly.

Great product for the price. Used one (of 6) to trigger an inverter power supply for a backup sump pump system. Float switch triggers 12VDC relay which turns on inverter to run a 120VAC pump from a 12VDC battery. Easy to mount. Threads are clean and strong. Each come with a sealing o-ring on the threaded shaft. The float trips the switch ON as it travels away from the threaded shaft/wire end. About 1-1.5" full travel. So the wires are for sure under water when it turns on. However the wire seal cement looks to be very good quality. Durability should be good but it is all plastic. Well made.

These things are absolute garbage! if you plan on using them for anything that you really need to depend on please do not buy them! I have purchased several throughout the years only to be let down by then not working when they need to sound off high fluid alert .

I used this float to monitor the activity of a sump pump (specifically looking for when the water level dropped which indicated the sump pump had run). After trying various other gadgets like a water level sensor (which failed in a matter of days), this float has been working flawlessly for weeks. It is used simply as a switch, with no load in the circuit. It is attached to an A-D converter that is connected to an Arduino Wifi that logs pump activity to a database on a web server. The float acts essentially as a resistor -- either very high resistance when the switch is open, and very low resistance when the switch is closed. I suspect that people who have had issues with this float have a load in the circuit that contains this switch, thereby drawing current through the float. Instead, use the float to send a signal to, say, an Arduino which then controls a relay that switches power to the load. This will keep the current through the float at a very low level. No need for an expensive Arduino -- a basic Nano will do.

Don’t by these for an ATO set up. They require very still water. Other then that they seem to be just fine.

This is total failure.. it simply don't work

No me gustó de los seis ninguno funcionó