Description: Brand new and . Can be used to sense the level of liquid in a tank. Can activate a pump, an indicator, an alarm or other device. Use it with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be Contains. Internal Structure Installations: Top mount, switch is Open when water is at High level Top mount, switch is Closed when water is at Low level Bottom mount, switch is Open when water is at Low level Bottom mount, switch is Closed when water is at High level.
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