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.

Filter

Brand

Voltage

Brand

Voltage

Showing 1–48 of 64 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

Read more
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

Read more
Leak Sensor Service Part Kit — SP21050

Rheem

SKU: SP21050
$27.01
MSRP: $31.06
You save 15%
Read more
Rope Water Sensor for Leak Detection

Rheem

SKU: AP16678
$26.56
MSRP: $30.54
You save 15%
Rheem-Ruud AP16678 Rope Water Sensor quantity
TripleGuard Active Appliance Leak Shutoff

RectorSeal

SKU: 97720
$276.84
Rectorseal 97720 TripleGuard Active Appliance Leak Shutoff quantity
BMS Flood Sensor Connection Kit for Relief Valves, 3/4″ Discharge

Watts

SKU: 88009464
$352.31
MSRP: $405.16
You save 15%
Watts 88009464 BMS Flood Sensor Connection Kit for Relief Valves 3/4" Outlet 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%
Taco Comfort Solutions LB-075-H-2LF Leak Breaker 3/4" NPT Valve/Actuator quantity
Leak Breaker Sensor for Hydronic System Protection

Taco Comfort Solutions

SKU: 7240-LB1
$28.66
MSRP: $32.96
You save 15%
Taco Comfort Solutions 7240-LB1 Leak Breaker Sensor quantity
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%
Read more
Rope Water Sensor for Leak Detection

Rheem

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

Rheem

SKU: AP18944D
$27.30
MSRP: $31.40
You save 15%
Rheem-Ruud AP18944D Rope Water Sensor quantity
Flood Sensor Replacement Part for Modine Equipment

Modine

SKU: 5H1026650001
$118.58
MSRP: $136.37
You save 15%
Read more
Flood Sensor for Modine HVAC Equipment

Modine

SKU: 3H1009790003
$95.19
MSRP: $109.47
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%
Read more
Liquid Level Switch, Sump Operation, DPST, NEMA 1, 120/240 VAC

Johnson Controls

SKU: F59A-1
$223.11
MSRP: $256.58
You save 15%
Read more
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%
Read more
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
3/4″ Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F

Watts

SKU: F556015
$558.28
MSRP: $642.02
You save 13%
Read more
3/4″ Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F

Watts

SKU: F556013
$665.24
MSRP: $765.03
You save 15%
Watts F556013 3/4" LF40L-3 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%
Read more
2″ 740 Iron Boiler Pressure Relief Valve, 45 psi, Expanded Outlets

Watts

SKU: F384242
$2,032.23
MSRP: $2,337.06
You save 15%
Read more
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%
Read more
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
1″ Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F

Watts

SKU: F121456
$1,282.59
MSRP: $1,474.98
You save 13%
Watts F121456 1" LF140X-6 Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F quantity
3/4″ Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F

Watts

SKU: F121448
$771.78
MSRP: $887.55
You save 13%
Watts F121448 3/4" LF140S-3 Lead Free Auto Reseating T&P Relief Valve, 125 psi, 210°F quantity

Leak and Flood Detection

Brand

Category

Voltage

Brand

Category

Voltage