This is a infrared dual‑level water sensor module with two detection probes
When liquid level state indicators (D3, D4) light on at the same time, relay status indicator (D1) lights on and relay start to work. NO and COM are connected and external load starts to work. When D3, D4 light off at the same time, D1 lights off and rel
Sensor probes adopt full‑sealed waterproof design
Output mode is relay switch output, withstand current is 30A
Used in laboratory, automatic water filling system of fish and other situations requiring water level control and , as well as general industrial site water level control
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