Water Detection Sensor Products

Description

Common water detection sensors are leak detectors and rain drop detectors. A leak detector can be useful for monitoring leaks from a water heater, washing machine, under a sink, or a sump pit. Monitoring when rain occurs with rain drop detectors is useful in a plant, lawn, or garden watering system in order to turn the water off when it rains.

Leak detectors usually have a probe with two external electrodes. The effectiveness of this type of sensor depends on the electrical conductivity or resistivity of the water its detecting. If the water is not conductive enough, then the probe will not be able to detect the water. To make the probe more robust to high resistivity water content, you can add some salt on the floor near the electrodes so that it dissolves in the water before coming into contact with the electrode.

Rain drop detectors act as a switch when rain falls on the sensor and can also be used to measure the intensity of the rainfall. The sensor usually comes with a signal processing module that can output an analog signal for measuring the amount of rainfall and a digital signal for rain detection with a potentiometer for adjusting the sensitivity threshold.

More details on how leak detectors and rain drop detectors work can be found in the Water Monitoring System Components article.

Leak Detectors

Water Leak Detector Probes

Level Sense LS2600 Surface Liquid Sensor for Flood and Leak Detection

Seller: Sump Alarm, Inc.

Package includes:

1x LS2600 Surface Liquid Sensor

+ About this item:

The Leak sensor behaves as an open circuit when no water is present, and behaves as a (roughly) 1.4MΩ resistor when water is present. The resistance of it depends on your water and can vary.
Housing: ABS, white
6 Feet of Cable
Red wire to Positive, white wire to Negative (ground)
Working Voltage: 5Vdc-12Vdc
Max. Voltage: 24Vdc
Temperature: 14⁰F +150⁰F / (-10℃ +65℃)
Size (LxWxH): 64mm x 15.6mm x 12.7mm

Price: $14.99(Updated UTC)

Amazon.com ()

UHPPOTE Wired Water Probe Liquid Overflow Leak Induction Electrode Detector Switch Singal Sensor for Alarm System (5PCS)

Seller: UHPPOTE

Package includes:

5x Probe

+ About this item:

The liquid induction electrode detector can be used for the water immersion detection of the ground or the limited water level space.
Once water touches the stainless steel probe, the circuit will be switched on and convey a signal to the alarm device.
Case Material: ABS
Detecting Leads: Stainless steel
Contact: NC/COM
Probe Size: approx. 15mm x 13mm (0.59in x 0.51in)

Price: $12.99(Updated UTC)

Amazon.com ()

DFRobot SEN0454 Water Leak Detector

Package includes:

1x Water Leak Detector

+ About this item:

The sensor uses a relay output signal, when it is normally open and water touches the two probes, the built-in relay will be triggered. When it is normally closed and the water level is lower than two probes, the built-in relay will be triggered;

NO/NC switch
Wiring: red power supply +, black power supply -, blue common, green normally open, yellow normally closed
Protection Level: IP66
Operating Voltage: 7-18V
Power Consumption: < 30mA
Operating Temperature: -10°C to +60°C
Size: 47mm (1.85in) in diameter, 30mm (1.18in) in height

Price: $17.90(Updated UTC)

DFRobot.com ()

Water Leak Detectors with Alarm

HydroCheck Water Leak Detector with Alarm

Seller: HydroCheck

Package includes:

1x Water Leak Detector with plug

+ About this item:

When water is detected, the WaterWatcher turns off the appliance that is causing the leak and sounds an alarm.

Capable of detecting even the smallest, purest amounts of liquid
Helps to prevent major flooding and water damage
Place the sensor puck on the floor where the risk of leakage is greatest
Plug the control module into a 120 VAC outlet
Smart button on side of plug silences alarm, disables alarm, or resets switch
Alarm Rating: 85dB
Product is made in the USA
Cable Length: 12ft
Size: 2.8in x 2.5in x 3.5in

Price: $79.99(Updated UTC)

Amazon.com ()

WER Water Leak Alarm Battery Operated Leak Alert Water Detector for Home Use (2PCS)

Seller: WERCAN Company

Package includes:

2x liquid leak alarm

+ About this item:

Easy to install and use, suitable for the sink cabinet, sump pump, washing machine, bathrooms, basements, kitchen and water heater, anywhere you think the need for the waterproof alarm.
The liquid leak alarm is made of ABS plastic and electronic parts, completely waterproof design
Ultra-Loud 100dB Alarm
Powered by one 6F22 9V battery (battery is not included)
The sensor consumes very little power and can give you home safety protection for up to one year.
Size: 81mm x 82mm x 32mm

Price: $12.87(Updated UTC)

Amazon.com ()

THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm

Seller: Glentronics

Package includes:

1x liquid leak alarm

+ About this item:

Detects as little as 1/32 in. of water to offer an effective early warning system
Loud 110 dB alarm can be heard throughout the house
Sensor has a 6 ft. wire so it can be extended into a sump pit, or mounted on a wall
Speaker Size: 1.25in x 3.25in x 4.25 in
Sensor Size: 2.5in x 1in x 1/8in

Price: $12.48(Updated UTC)

Amazon.com ()

Rain Drop Detectors

uxcell Rain Drop Water Detector Sensor Module

Seller: uxcell

Package includes:

1x Raindrop sensor
1x Module
2x Female to Female Dupont jumper wires

+ About this item:

Digital output and analog output
Min. Current : 15mA
Power indicator light
With a potentiometer to adjust the sensitivity with a wide voltage LM393 comparator
Supply Voltage: +3.3V to +5V DC
Sensor Board Size (LxW): 50mm x 40mm (1.97in x 0.57in)
Module Board Size (LxW): 30mm x 15mm (1.18in x 0.59in)
Jumper Wire Length: 21cm (8.27in)

Price: Unavailable (Updated UTC)

Amazon.com ()

uxcell Rain Drop Water Detector Sensor Module (2PCS)

Seller: uxcell

Package includes:

2x Raindrop sensor
2x Module
4x Female to Female Dupont jumper wires

+ About this item:

Model Number: a13082300ux1431
The sensor uses high quality FR-04 double-sided materials and nickel-plated surface with oxidation resistance
Digital output and analog output
Min. Current : 15mA
Power indicator light
With a potentiometer to adjust the sensitivity with a wide voltage LM393 comparator
Supply Voltage: +3.3V to +5V DC
Sensor Board Size (LxW): 5.5cm x 4cm (2.2in x 1.6in)
Module Board Size (LxW): 3.2cm x 1.4cm (1.3in x 0.55in)
Jumper Wire Length: 21cm (8.27in)

Price: $11.89(Updated UTC)

Amazon.com ()

HiLetgo Rain Drop Water Detector Sensor Module (3PCS)

Seller: HiLetgo

Package includes:

3x Rain Detection Module

+ About this item:

The sensor uses high quality FR-04 double-sided materials and nickel-plated surface with oxidation resistance
Digital output and analog output
Min. Current : 15mA
Power indicator light
With a potentiometer to adjust the sensitivity and uses a wide voltage LM393 comparator
Supply Voltage: 3.3V-5V DC
Size (LxW): 5.5cm x 4cm (2.2in x 1.6in)

Price: $6.49(Updated UTC)

Amazon.com ()

Fielect Rain Drop Water Detector Sensor Module

Seller: Fielect US

Package includes:

1x Rain Detection Module

+ About this item:

Digital output and analog output
Min. Current : 15mA
Power indicator light
With a potentiometer to adjust the sensitivity and uses a wide voltage LM393 comparator
Supply Voltage: 3.3V-5V DC
Size (LxW): 5.6cm x 3.4cm (2.2in x 1.6in)

Price: $5.79(Updated UTC)

Amazon.com ()

Water Detection Sensor Products

Description

Leak Detectors

Rain Drop Detectors

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Water Detection Sensor Products

Description

Leak Detectors

Rain Drop Detectors

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