Review on 🌊 Baomain 4M Cable Float Switch Water Level Controller: Optimize Tank Pump Performance by Alif Wills

I bought these 3 years ago, with most float switches, if you limit the current they switch they will extended service life. I used a switch to turn on the transistor, very little current. This transistor drives a relay that controls a contactor. The contactor turns on the pump and fills the tank. Because I love redundancy, I have four instead of two. I installed 4 of them and 2 of them failed. If they only last 3 years I don't need them. The two that failed are the two that cycle the most, which tells me they're not that durable. Only lasted 600 cycles. I'm still looking for a cheaper solution, but haven't found one yet.