Water Sensor Relay Module With SPDT Switch For 12V DC Operation, Supports Load Up To 30V DC Or 277V AC At 10 Amp Max, Plug And Play Water Detection For Auto Pump, Leak Alarm, And Smart Microcontroller Projects

Single-Unit 12V Water Sensor Relay Module with SPDT Output
✔️ 12V DC supply, SPDT relay, 277V AC/30V DC, 10A max

The Water Sensor Relay Module is a compact, plug-and-play controller that uses two sensing leads to detect water. When moisture appears on P1 and P2, the built-in SPDT relay switches C-NO and C-NC accordingly, enabling automatic pumps, leak alarms, or microcontroller projects. Powered from a DC 10-15V supply and drawing less than 50 mA, it's perfect for basements, sump pits, kitchens, and other areas where fast moisture detection and automatic response matter.

✅ SPDT relay output (C-NO and C-NC)
✅ Max switching voltage: AC 277V / DC 30V
✅ Maximum load: 10 A
✅ Supply voltage: DC 10-15V; current <50 mA
✅ LED indicators: green for relay action, red for release
✅ Sensor cable length: up to 10 m (normal); up to 100 m (shielded) with shield tied to negative
✅ Compact plastic case with two mounting holes for easy mounting

💡 What is a water sensor relay module used for in home automation and leak control?

This handy module is designed to trigger devices like pumps or alarms when moisture is detected. - handy for auto pump control in basements or sump pits - leak detection alerts for kitchens, baths, and laundry areas - easy to integrate with Arduino, Raspberry Pi, or other microcontrollers - SPDT relay lets you switch a load safely at higher voltages