100% brand new, high quality
Working voltage: 5V
Controller PCB size: 42 * 69 mm
Sensor PCB size: 86 * 21 mm
Tri-color LEDs display low (red), medium (yellow), high (green) water, low water pumping or high pumping when you press the function switch to spring up and turn off (ie, not pressed) low water The relay (external pump operation), when the water starts to be added, the water level rises to the high level and the relay closes (the pump stops working) until the water level is lower than the low water level and relays again, the above process cycles. This function is used in automatic water equipment to keep the water level at a low level and between high levels. When pressed, when the high water relay (external solenoid valve) starts to drain the function switch, the water level drops to the low water level relay disconnected (the solenoid valve stops working) until the water level rises again until the high water level relay pulls again, the above process cycle . This function is used in automatic drains to keep the water level between low and high water levels.
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