XW-112™ Wi-Fi Water Detector Users Manual
Installation and Setup
Section 2: Installation and Setup
2.1 Power and Sensor Connections
The XW-112 has a 3-position terminal strip for making connections to the GRI-2605 Liquid Detection
Sensor. The sensor detects the presence of water or other conductive, non-flammable liquids. The
sensor has 4-wires which are connected as shown below. The XW-112 input works with simple switch or
relay sensors.
Do not connect the 5V output or the digital input to a power source.
The input will
work with cable lengths up to 20-feet and should not be routed near motors or AC wiring.
The GRI-2605 has an internal relay. Its contacts (green & white wires) are closed when the sensor is dry.
When the sensor is dry, the digital input will be “On.” When water is detected, the relay contacts open
and the digital input will be “Off.” With the connections shown, the water sensor is a supervised closed-
loop alarm circuit such that if a wire is disconnected or the sensor fails, an alarm will be generated. The
XW-112 can be programmed to activate a relay at a remote location and/or send an email warning when
a water leak is detected. After installation, test the sensor with a damp sponge or wet towel and inspect
annually.
Xytronix Research & Design, Inc.
Page 5
Wire
Description
Red
+5V DC
Black
Ground
Green
Relay contact (closed if dry)
White
Relay contact (closed if dry)
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