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Reliable Water Leak Detectors for Precise Leak Detection and Protection Systems

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    DC Floor Water Sensor for Flood and Leak Detection (30 ft)

    LEVEL SENSE
    In stock

    Mfr #: LS-LEAK-10M Liquid Detection Sensor for Alarm Systems and / or Home Electronic Projects 30 Feet Of Cable, 2 Mounting Screws, and Instructio...

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    1-Wire Indoor/Outdoor Temp Sen, E-T1W-1M

    NETWORK TECHNOLOGIES
    In stock

    Mfr #: E-T1W-1M Chips Gate, founded in 2010, is a professional purchasing B2B & B2C tool in electronic components field. If you would like mor...

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    Gas Detector - Methane Butane

    NETWORK TECHNOLOGIES
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    Gas Detector - Methane Butane Intended for inventory replenishment and standardization. intended for professional buyers focused on durability and ...

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    Rfid Em Cards 10Pk

    NETWORK TECHNOLOGIES
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    NETWORK TECHNOLOGIES component for professional use. Intended for planned maintenance programs. chosen for predictable fit and professional handlin...

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    $18.51
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    Ip65 Outdoor Temp Sensor

    NETWORK TECHNOLOGIES
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    NETWORK TECHNOLOGIES electrical component for professional use. Application Suitable for production support and bench work. designed to support rel...

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    $18.51
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    $380.51
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    WaterBug Unsupervised Water Detection System, 9V Battery Operated

    WINLAND ELECTRONICS
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    Barcode/UPC/EAN: 82075104708 Intended for field service tasks and on-site replacement. chosen for predictable fit and professional handling, hel...

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    $380.51
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    FloodMaster Battery-Powered Water Leak Detection & Alarm System

    RELIANCE DETECTION TECHNOLOGIES
    In stock

    Mfr # RS-095. Floodmaster's rs-095 simple water alarm system is designed to sound an audible alarm when the sensor comes in contact with just 1/3...

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    $278.45
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    $35.97
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    Flo Indoor Smart Water Leak Detector

    MOEN
    In stock

    Mfr #: 920-006 MAXIMIZE YOUR PROTECTION: Add the 6-ft Leak Sensing Cable accessory to your Flo by Moen Smart Water Detector, sold separately, to e...

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    $35.97
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    Lead Free Water Detector Shutoff, 3/4 in.

    WATTS
    In stock

    Mfr #: LFWDS-SP-R WATER DETECTOR SHUTOFF: Designed for use with electric water heaters, the Watts FloodSafe Lead-Free Water Detector Shutoff prote...

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    $956.34
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    Plunger-Style Door Contact Sns

    NETWORK TECHNOLOGIES
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    High-Definition Wired Day/Nigh

    NETWORK TECHNOLOGIES
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    High-Definition Wired Day/Nigh Notes: Verify application needs and any compliance requirements for your facility or project.

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    $164.99
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    Terminating Plug For Rs485 Cas

    NETWORK TECHNOLOGIES
    In stock

    Terminating Plug For Rs485 Cas Application Intended for production support and bench work. built for consistent day-to-day use, helping teams keep ...

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    $164.99
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    $164.99
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    Spot Liq Detector With Built-I, E-SLDO-A

    NETWORK TECHNOLOGIES
    In stock

    Spot Liq Detector With Built-I, E-SLDO-A Notes: Confirm fit, compatibility, and any site-specific requirements prior to ordering or installation.

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    $164.99
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    Probe-Style Temp/Humidity/Dew, E-STHSM-E7

    NETWORK TECHNOLOGIES
    In stock

    NETWORK TECHNOLOGIES component for professional use. Notes: Verify application needs and any compliance requirements for your facility or project.

    Original price $0.00 - Original price $0.00
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    $164.99
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    Self-Adhesive Clips For Liq/Ch, E-CLP100-LD

    NETWORK TECHNOLOGIES
    In stock

    NETWORK TECHNOLOGIES adhesive/sealant for professional use. Notes: Confirm fit, compatibility, and any site-specific requirements prior to orderin...

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    $164.99
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    Current price $164.99
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    $32.76
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    Flood Prevention Switch, 3/4" Pipe Valve

    DIVERSITECH
    In stock

    Mfr # CS-2 Item Flood Prevention Switch Connection Type Wired Material Plastic ...

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    Original price $15.66 - Original price $15.66
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    $32.76
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  • Original price $8.70 - Original price $8.70
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    $18.90
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    Flood Prevention Switch, Wired Connection

    DIVERSITECH
    In stock

    Mfr # CS-3 Item Flood Prevention Switch Connection Type Wired Material Plastic ...

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    Original price $8.70 - Original price $8.70
    Original price $8.70
    $18.90
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  • Original price $18.56 - Original price $18.56
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    $40.32
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    Water Surface Sensor-Unsupervised, 15 ft.

    WINLAND ELECTRONICS
    In stock

    Mfr # W-S-U Item Water Surface Unsupervised Sensor For Use With WaterBug(R) Accessory Type ...

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    Original price $18.56 - Original price $18.56
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    $40.32
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  • Original price $90.48 - Original price $90.48
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    $211.68
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    Water Alarm with Security System Tie In

    FLOODMASTER
    In stock

    Mfr # RS-096 Item Water Detection System Amps 0.067 Voltage 120 V AC F...

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    Original price $90.48 - Original price $90.48
    Original price $90.48
    $211.68
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    $443.52
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    Detection/Alarm Shutoff System, 120VAC

    FLOODMASTER
    In stock

    FLOODMASTER Water Detector Categorized under Water Detectors, this water detector is selected for practical installation and ongoing service needs....

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    Original price $162.40 - Original price $162.40
    Original price $162.40
    $443.52
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  • Original price $66.70 - Original price $66.70
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    $171.36
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    Battery Operated Water Alarm System

    FLOODMASTER
    In stock

    FLOODMASTER Water Detector Categorized under Water Detectors, this water detector is selected for practical installation and ongoing service needs....

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    Original price $66.70 - Original price $66.70
    Original price $66.70
    $171.36
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    Current price $171.36
  • Original price $161.24 - Original price $161.24
    Original price $161.24
    $401.94
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    Water Heater Leak Detection System, 3/4In

    FLOODMASTER
    In stock

    Mfr #: RS-094-3/4 Price For: Each Amps: 0.127 Voltage: 120VAC Max. Pressure: 80 psi Power Cord Length: 12 ft. Relay Output: 12 to 24 Volts, 0.25 ...

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    Original price $161.24 - Original price $161.24
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    $401.94
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    Current price $401.94
  • Original price $141.24 - Original price $141.24
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    WaterBug® WB200 Unsupervised Water Detection System, Hardwire Powered

    WINLAND ELECTRONICS

    WaterBug® WB200 Unsupervised Water Detection System, Hardwire Powered is selected for contractor supply rooms, maintenance teams, and trade profess...

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    Original price $141.24 - Original price $141.24
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    $141.24
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    Current price $141.24
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    $31.49
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    Current price $31.49

    Level Sense 15 Feet Water Level Float Switch with Mounting Brackets

    LEVEL SENSE
    In stock

    Mfr # LS-FLOAT-KIT Material Polypropylene Item Weight 4.6 ounces Power Requirements ...

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    Current price $31.49

About Reliable Water Leak Detectors for Precise Leak Detection and Protection Systems

Protect your property from plumbing failures, appliance leaks, and water heater issues with our range of water leak detectors. This collection includes advanced water leak detection solutions such as water alarm systems, flood prevention switches, surface sensors, and automatic shutoff systems designed to provide fast, accurate alerts before damage occurs.

Each leak detector is engineered for dependable performance and easy installation, making them ideal for homes, commercial buildings, and mechanical environments. From water heater leak detection to wired and wireless flood prevention switches, these devices monitor critical areas and deliver real-time protection to prevent costly repairs and downtime.

Find the right water leak detector or alarm system to safeguard your property with confidence.

Frequently Asked Questions

What is the difference between a point leak detector and a whole-house leak detection system?

A point detector monitors a limited area near a water heater, appliance, sink, sump, or other risk location. A whole-house system monitors the main water supply or combines multiple sensors and may include flow analysis, remote alerts, and an automatic shutoff valve. Choose according to the area that must be protected, the desired alert method, available power and connectivity, and whether automatic water shutoff is required.

How do I choose a water leak detection device?

Define the coverage area, likely leak sources, response time, alert method, power source, connectivity, environmental exposure, and whether a shutoff valve is needed. Compare sensor type, cable or probe length, audible-alarm output, remote notification, battery supervision, valve size, installation requirements, and compatibility with building-management or smart-home systems.

Where should moisture leak detectors be installed?

Common locations include water heaters, washing machines, dishwashers, refrigerators, sinks, toilets, mechanical rooms, basements, sump areas, HVAC equipment, and pipe chases. Place the sensor where leaking water is likely to collect first, while keeping it accessible for testing and battery replacement. Follow the manufacturer's placement limits for temperature, humidity, dust, and outdoor exposure.

Can a whole-house leak detector automatically shut off the water?

Only systems supplied with or connected to a compatible motorized shutoff valve can stop the main water supply. Basic moisture alarms normally provide an audible or electronic warning but do not close a valve. Verify pipe size, valve type, power, fail-safe behavior, manual override, communications, and whether professional plumbing installation is required.

How do area leak alarms detect water?

Area leak alarms may use point probes, conductive sensing cable, float switches, or flow-monitoring technology. Point probes detect water at one location, cable sensors monitor a longer path, and flow systems identify unusual water use in the plumbing line. Select the method that matches the expected leak pattern, surface, coverage area, and response requirement.

Does a whole-home water leak detection system require professional installation?

Sensor-only alarms may be installed by the user when the instructions permit. Systems that modify the main water line, add a shutoff valve, connect to line voltage, or integrate with building controls commonly require qualified plumbing or electrical work. Confirm local code requirements, valve access, pipe size, power, network coverage, and commissioning procedures before installation.

What affects the cost of a whole-house water leak detection system?

Cost depends on the number and type of sensors, automatic shutoff valve, pipe size, flow-monitoring features, connectivity, backup power, installation complexity, and integration with other systems. Compare the complete installed system and ongoing battery, subscription, testing, and maintenance requirements. Use current product listings for live pricing.

How often should leak detectors and moisture alarms be tested?

Test devices at the interval stated by the manufacturer and after battery replacement, plumbing work, a power outage, or any alarm event. Confirm the audible alarm, notifications, sensor response, valve operation, backup power, and manual override. Keep probes clean and accessible, and replace batteries or sensing components according to the maintenance schedule.

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