That's what I've got on both my solar wells.   I tried to find a link to that part but couldn't.   They work good but you need to have a delay on your control box, hopefully all solar controllers have it.   That way, when the wind blows and the water level bounces the pump isn't kicking in and out constantly.     Sensor has to be out of the water for 30 to 40 seconds before the pump can kick in.