11.5mm Thread Water Level Sensor 90 Degree Angle Floating Switches ZPC1 3 Pcs Slide Switches the light icon joints to

the light icon joints to the positive pole of the light and the ground wire icon joints to the negative pole of power source

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These float switches are a device used to sense the level of liquid within a tank

11.5mm Thread Water Level Sensor 90 Degree Angle Floating Switches ZPC1 3 Pcs Slide Switches the light icon joints toDescription: A float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device. Note: because the current that the switch can carry is much little(0. 5A), you must use a relay or contactor when it is connected by a load, relay or contactor are not included here.