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Features -Color:Red + blue + black + white + green + yellow -size:1
This board is used with 2
Screen size: 27mm x 17mm
an on-board resonator
Onboard USB connectivity for easy configuration
220V Liquid Water Level Sensor Single Battery Shield Features -Color:Red + blue +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. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, pumps, ponds, basement alarms, boats, air condition drain pans, pressure washers, carpet cleaning mach., reef aquarium, fluid control, ice machines, coffee
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