Скачать или смотреть How does a float switch with a 3S controller keep your tank full automatically?

Last time, we learned how the float switch works in Drainage Mode.
Now let’s see how it works in Water Supply Mode with the 3S controller! 🚰
When the water level drops, the float goes down → pump starts.
When the water level rises, the float lifts → pump stops.

⚙️Below is the wiring guide for the 3S UnmannedPumpControl system, which intelligently switches between single-pump and dual-pump water supply based on water level.
Add jumper between SIG1–COM and SIG2–SIG3
Connect Float 1 → SIG3 & COM
🔹 Float 1 down → dual-pump start
🔹 Float 1 up → single-pump run
Connect Float 2 → SIG4 & COM
🔹 Float 2 down → single-pump run
🔹 Float 2 up → pump stop

Widely used in 🌾 Irrigation, 🏠 water tanks, 🐄 livestock troughs, and 🏭 industrial cooling systems.
Simple wiring, smart control — that’s 3S Unmanned Pump Control

Shanghai 3S Global Company Limited
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