very good for certain uses. item came with normally closed contacts; to change, simply turn float over. no doubt has reed switches in the tube, triggered by magnets in the floats. these are very light duty so a relay would be necessary for heavy loads such as a sump pump. a dpst relay will allow "hold in" contacts to use for level control. see google image for circuit. ed c
Verified purchase: Yes | Condition: New
If you are a hobbyist or experimenter this device has a place in your inventory. I ordered 2 more after I received my first one. I will make good use of these!
Verified purchase: Yes | Condition: New
using this in an off grid setup in the woods to fill a water reservoir, and then pump from it. It works perfectly! Very happy with this.
Verified purchase: Yes | Condition: New
They were great I do lotta different types of experiments thank you
Verified purchase: Yes | Condition: New
this is handy, I will be able to monitor the level in my septic tank to know when its at the necessary level. allows me to control the pump as needed.
Verified purchase: Yes | Condition: New
Good quality and performance.
Verified purchase: Yes | Condition: New
These were for replacements. The first one I purchased lasted about 7 years. Good service life.
Verified purchase: Yes | Condition: New
Its just what I ordered !
Verified purchase: Yes | Condition: New
work very well at spec'ed sensing distance
Verified purchase: Yes | Condition: New
Simple construction. Easy to switch from always on to always off.
Verified purchase: Yes | Condition: New
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