Leak and Flood Detection

Safeguard your home from costly water damage with advanced water leak sensors and detectors. These smart devices can instantly detect leaks and alert you in real-time, enabling you to take immediate action. Many systems also feature automatic shut-off valves, stopping the flow from hot water tanks or other sources to prevent further damage and save on repair costs. At Jackson Systems & Supply, you’ll find top-rated leak detection brands, including Diversitech, UEi, and LeakSmart, trusted for reliability and performance. Browse our selection to protect your home with the latest in leak detection technology.

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Showing 1–48 of 57 resultsSorted by popularity

Wet Switch Flood Detector, 24 VAC, 2 Amp, Secondary Drain Pan

Asurity

SKU: WS-1
$68.75
MSRP: $79.06
You save 15%
Asurity WS-1 Wet Switch Flood Detector, 24 VAC, 2 Amp, Secondary Drain Pan quantity
L1 WiFi Water Leak and Freeze Detector and Sensor Cable (3 Pack)

Resideo

SKU: YCHW3000W3003

Rated 5.00 out of 5
$173.99
Resideo YCHW3000W3003 L1 WiFi Water Leak and Freeze Detector and Sensor Cable (3 Pack) quantity
L2 WiFi Water Sensor and Switch Leak Detector

First Alert

SKU: TWLD3005-001

$95.61Add to Cart for Savings

First Alert TWLD3005-001 L2 WiFi Water Sensor And Switch Leak Detector quantity
Electronic Leak Detector, HVAC Water Damage Prevention

Asurity

SKU: LD-1
$56.50
MSRP: $64.98
You save 15%
Asurity LD-1 Electronic Leak Detector, HVAC Water Damage Prevention quantity
SmartPlug Instant Hot Water Control

Taco Comfort Solutions

SKU: SP115-1

Rated 5.00 out of 5
$134.88
MSRP: $155.11
You save 15%
Taco SP115-1 SmartPlug Instant Hot Water Control quantity
L5 Wi-Fi Water Leak Shutoff Valve 3/4″ NPT Ball Valve

Resideo

SKU: VWS02Y-3/4

Rated 5.00 out of 5
$221.12
Resideo VWS02Y-3/4 - L5 Wi-Fi Water Leak Shutoff Valve with Actuator with 3/4 NPT Ball Valve quantity
L5 Wi-Fi Water Leak Shutoff Valve with 1″ NPT Ball Valve

Resideo

SKU: VWS02Y-1
$255.61
Resideo VWS02Y-1 - L5 Wi-Fi Water Leak Shutoff Valve with 1in NPT Ball Valve quantity
Water Shut-Off, Leak Breaker, Wifi, 3/4 NPT Valve and Actuator

Taco Comfort Solutions

SKU: LBW-075-H-1LF

$462.00Add to Cart for Savings

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WIFI Water Leak Detector Accessory Cable Sensor – 5 Feet

Resideo

SKU: WLD3CABLE
$14.53
Honeywell WLD3CABLE WiFi Water Leak Detector Accessory Cable Sensor (5-ft) quantity
Water Leak & Freeze Detector

Kidde

SKU: 60WLDR-W
$34.97
Kidde 60WLDR-W Water Leak & Freeze Detector quantity
Wet Switch Flood Detector, Dual Voltage, Dual Isolated Control Signals

Asurity

SKU: WS-2DV
$92.69
MSRP: $106.59
You save 15%
Asurity WS-2DV Wet Switch Flood Detector, Dual Voltage, Dual Isolated Control Signals quantity
Sale!
Snap On Valve Controller, No Tools Required

LeakSmart

SKU: LS8852000

$349.00Add to Cart for Savings

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Leak Sensor Service Part Kit — SP21050

Rheem

SKU: SP21050
$27.01
MSRP: $31.06
You save 15%
Rheem-Ruud SP21050 Leak Sensor Service Part Kit quantity
TripleGuard Active Appliance Leak Shutoff

RectorSeal

SKU: 97720
$276.84
Rectorseal 97720 TripleGuard Active Appliance Leak Shutoff quantity
Leak Breaker 3/4″ NPT Valve & Actuator Assembly

Taco Comfort Solutions

SKU: LB-075-H-2LF
$264.10
MSRP: $303.72
You save 15%
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Leak Breaker Sensor for Hydronic System Protection

Taco Comfort Solutions

SKU: 7240-LB1
$28.66
MSRP: $32.96
You save 15%
Read more
Leak Sensor-Shut Off Kit for Water Heater Protection

Rheem

SKU: SP21111
$269.49
MSRP: $309.91
You save 15%
Rheem-Ruud SP21111 Leak Sensor-Shut Off Kit quantity
Leak Sensor Assembly / Housing G2

Rheem

SKU: AS46852-1
$55.68
MSRP: $64.03
You save 15%
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Rope Water Sensor for Leak Detection

Rheem

SKU: AP19134
$29.45
MSRP: $33.87
You save 15%
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Rope Water Sensor for Leak Detection

Rheem

SKU: AP18944D
$27.30
MSRP: $31.40
You save 15%
Rheem-Ruud AP18944D Rope Water Sensor quantity
Rope Water Sensor for Leak Detection

Rheem

SKU: AP16678
$26.56
MSRP: $30.54
You save 15%
Rheem-Ruud AP16678 Rope Water Sensor quantity
Flood Sensor Replacement Part for Modine Equipment

Modine

SKU: 5H1026650001
$118.58
MSRP: $136.37
You save 15%
Modine 5H1026650001 Flood Sensor Replacement Part quantity
Flood Sensor for Modine HVAC Equipment

Modine

SKU: 3H1009790003
$102.90
MSRP: $118.34
You save 15%
Modine 3H1009790003 Flood Sensor quantity
Water Detector with 10 ft. Sensing Tape

Johnson Controls

SKU: WD-2-T-10
$299.79
MSRP: $344.76
You save 15%
Johnson Controls WD-2-T-10 Water Detector with 10 ft. Sensing Tape quantity
Liquid Level Switch, Sump Operation, DPST, Fixed Mounting, NEMA 1

Johnson Controls

SKU: F59H-1
$194.53
MSRP: $223.71
You save 15%
Johnson Controls F59H-1 Liquid Level Switch, Sump, DPST, NEMA 1, 120/240 VAC quantity
Liquid Level Switch, Sump Operation, DPST, NEMA 1, 120/240 VAC

Johnson Controls

SKU: F59A-1
$223.11
MSRP: $256.58
You save 15%
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L5 Actuator with 3/4″ Ball Valve and Leak Sensor

Honeywell Home

SKU: VWS01Y-3/4
$327.59
MSRP: $376.73
You save 13%
Honeywell VWS01Y-3/4 L5 Actuator with 3/4" Ball Valve and Leak Sensor quantity
Wet Switch Flood Detector for HVAC Condensate Protection

DiversiTech

SKU: WS-1C
$120.18
MSRP: $138.21
You save 15%
DiversiTech WS-1C Wet Switch Flood Detector quantity
Drain Pan Overflow Switch for HVAC Condensate Protection

First Company

SKU: SS3
$61.01
MSRP: $70.16
You save 15%
First Company SS3 Drain Pan Overflow Switch quantity
Water Leak Detector, Line Powered, DPDT Relay, 11–27 Vac/DC

Dwyer

SKU: WD3-LP-D2-A
$78.56
MSRP: $90.34
You save 15%
Dwyer WD3-LP-D2-A Water Leak Detector, Line Powered, DPDT Relay, 11–27 Vac/DC quantity
Line Powered Leak Detector with Dual-Zone Detection

Dwyer

SKU: WD3-LP-D2-10
$79.68
MSRP: $91.63
You save 15%
Dwyer WD3-LP-D2-10 Line Powered Leak Detector quantity
Dual Function Level Control for Reliable Liquid Level Sensing

Warrick-Gems Sensors & Controls

SKU: DFC1B0K
$489.81
MSRP: $563.28
You save 13%
Warrick-Gems Sensors & Controls DFC1B0K Dual Function Level Control quantity
1″ Lead Free Auto Reseating T&P Relief Valve, 125 PSI, 210°F

Watts

SKU: F556018
$2,158.42
MSRP: $2,482.18
You save 15%
Watts F556018 1" Lead Free Auto Reseating T&P Relief Valve, 125 PSI, 210°F quantity
1″ Lead Free Auto Reseating T&P Relief Valve, 100 PSI, 210°F

Watts

SKU: F556006
$1,079.88
MSRP: $1,241.86
You save 15%
Watts F556006 1" LF40XL-4 Lead Free Auto Reseating T&P Relief Valve, 100 PSI, 210°F quantity
2″ 740 Iron Boiler Pressure Relief Valve, 50 psi, Expanded Outlets

Watts

SKU: F384292
$1,430.76
MSRP: $1,645.37
You save 13%
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2″ 740 Iron Boiler Pressure Relief Valve, 45 psi, Expanded Outlets

Watts

SKU: F384242
$2,032.23
MSRP: $2,337.06
You save 15%
Watts F384242 2" 740 Iron Boiler Pressure Relief Valve, 45 psi, Expanded Outlets, Flood Sensor quantity
1-1/4″ 740 Iron Boiler Pressure Relief Valve, 45 PSI, Expanded Outlets

Watts

SKU: F383308
$1,010.59
MSRP: $1,162.18
You save 15%
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1″ 740 Iron Boiler Pressure Relief Valve, 60 psi, Expanded Outlets

Watts

SKU: F382870
$653.34
MSRP: $751.34
You save 15%
Watts F382870 1" 740 Iron Boiler Pressure Relief Valve, 60 psi, Expanded Outlets quantity
1-1/2″ Bronze Auto-Reseating T&P Relief Valve, 150 PSI, 210°F

Watts

SKU: F344276
$1,656.33
MSRP: $1,904.78
You save 13%
Read more
3/4″ LLL40XL-5 Bronze Auto Reseating T&P Relief Valve, 150 PSI, 210°F

Watts

SKU: F163803
$528.80
MSRP: $608.12
You save 13%
Watts F163803 3/4" LLL40XL-5 Bronze Auto Reseating T&P Relief Valve, 150 PSI, 210°F quantity
1″ 40XL-7 Bronze Auto Reseating T&P Relief Valve, 150 psi, 210°F

Watts

SKU: F163765
$260.55
MSRP: $299.63
You save 15%
Read more
1-1/2″ LF340 Lead Free T&P Relief Valve, 125 PSI, 210°F, Flood Sensor

Watts

SKU: F121601
$4,589.99
MSRP: $5,278.49
You save 15%
Watts F121601 1-1/2" LF340 Lead Free T&P Relief Valve 125 PSI 210°F w/ Flood Sensor quantity
3/4″ Lead Free Auto Reseating T&P Relief Valve, 150 psi, 210°F

Watts

SKU: F121459
$761.00
MSRP: $875.15
You save 15%
Read more
3/4″ Lead Free Auto Reseating T&P Relief Valve, 150 psi, 210°F

Watts

SKU: F121429
$844.76
MSRP: $971.47
You save 13%
Read more
Flood Sensor Remote Valve BMS Retrofit Kit

Watts

SKU: 88009465
$352.31
MSRP: $405.16
You save 15%
Watts 88009465 FS-RV-BMS-RFK-1 Flood Sensor Remote Valve BMS Kit quantity
1/2″ Backflow Preventer with Integrated Flood Sensor

Watts

SKU: 88004015
$611.81
MSRP: $703.58
You save 13%
Watts 88004015 1/2" Backflow Preventer with Flood Sensor quantity
Premier Leak Detection Board for Carrier Systems

Carrier

SKU: HK50AA039
$2,782.78
MSRP: $3,200.20
You save 15%
Carrier HK50AA039 Premier Leak Board quantity
Rough Service Lead Detector for Demanding Environments

BAPI

SKU: BA/RLD-D-BB
$212.31
MSRP: $244.16
You save 15%
BAPI BA/RLD-D-BB Rough Service Lead Detector quantity