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Water Sensor Switch(203)
Uses item details. Price when purchased online
Zuomeng High Water Alarm for Sump Pump, Flashing Light & 110 dB Alarm, IP67 Casing, Connects to Submersible Pump $69.99

Sponsored
$6999
current price $69.99Zuomeng High Water Alarm for Sump Pump, Flashing Light & 110 dB Alarm, IP67 Casing, Connects to Submersible Pump
Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank $69.99 Was $79.99

Sponsored
Now$6999
current price Now $69.99, Was $79.99$79.99
Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank
24 out of 5 Stars. 2 reviews
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FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use $42.99

Sponsored
$4299
current price $42.99FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use
Shelly 1PM Gen3 x2 $29.74

Sponsored
$2974
current price $29.74Shelly 1PM Gen3 x2
25 out of 5 Stars. 2 reviews
M Buder Duckbill Float Switch 304 Stainless Steel Water Liquid Level Sensor Controller G1/2" DC0-220V (4.3 in / 108 mm) $18.80

$1880
current price $18.80M Buder Duckbill Float Switch 304 Stainless Steel Water Liquid Level Sensor Controller G1/2" DC0-220V (4.3 in / 108 mm)
M Buder Liquid Water Level Float Sensor Switch Side-Mounted 304 Stainless Steel 1/2NPT Male Thread DC0-110V Water Level Controller for Dispensers, Heaters, Solar Energy, Humidifiers $15.78

$1578
current price $15.78M Buder Liquid Water Level Float Sensor Switch Side-Mounted 304 Stainless Steel 1/2NPT Male Thread DC0-110V Water Level Controller for Dispensers, Heaters, Solar Energy, Humidifiers
YAHHU 5pcs PP Plastic Liquid Level Float Switch P3508 Water Tank Pool Sensor Controller (15.75 inches / 40 cm Wire) $11.29 Was $12.70

Now$1129
current price Now $11.29, Was $12.70$12.70
YAHHU 5pcs PP Plastic Liquid Level Float Switch P3508 Water Tank Pool Sensor Controller (15.75 inches / 40 cm Wire)
Topvico Water Leak Alarm for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 1-Pack From $8.89

5 options
Available in additional 5 optionsFrom$889
Topvico Water Leak Alarm for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 1-Pack
404.6 out of 5 Stars. 40 reviews
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YAHHU Side Mount Float Switch, Liquid Water Level Sensor Horizontal PP Plastic Float Sensor For Tank, Pool, Pump Control, 400MM Cable 10W 220VDC (5.51 x 3.94 x 0.79 inches / 14.0 x 10.0 x 2.0 cm) $13.78

$1378
current price $13.78YAHHU Side Mount Float Switch, Liquid Water Level Sensor Horizontal PP Plastic Float Sensor For Tank, Pool, Pump Control, 400MM Cable 10W 220VDC (5.51 x 3.94 x 0.79 inches / 14.0 x 10.0 x 2.0 cm)
YAHHU Double Ball Float Switch 4.72 inches / 120mm Stainless Steel Liquid Water Level Sensor Controller with 15.75 inches / 400mm Wire 0-220V Wide Voltage Application Heavy Duty Industrial $17.22

$1722
current price $17.22YAHHU Double Ball Float Switch 4.72 inches / 120mm Stainless Steel Liquid Water Level Sensor Controller with 15.75 inches / 400mm Wire 0-220V Wide Voltage Application Heavy Duty Industrial
Reduced price Shelly 1PM Gen3 $19.24 Was $27.49

Sponsored
Now$1924
current price Now $19.24, Was $27.49$27.49
Shelly 1PM Gen3
74.7 out of 5 Stars. 7 reviews
GREENCYCLE Wireless Light Switch and Receiver Kit, Wireless Remote Light Switch, Wireless Wall Switch for Lights, Fans, Battery Included, No Wiring Needed, Buckle Design, Removable, Programmeable From $16.99

Sponsored
From$1699
GREENCYCLE Wireless Light Switch and Receiver Kit, Wireless Remote Light Switch, Wireless Wall Switch for Lights, Fans, Battery Included, No Wiring Needed, Buckle Design, Removable, Programmeable
274.6 out of 5 Stars. 27 reviews
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Suodoka 2Pcs Water Level Sensor Switch White PP Plastic Liquid Float Switch 1/2in / 1.27cm Thread NPT DC0-110V $9.61

$961
current price $9.61Suodoka 2Pcs Water Level Sensor Switch White PP Plastic Liquid Float Switch 1/2in / 1.27cm Thread NPT DC0-110V
Best seller X-Sense Wi-Fi Water Sensor, Accessory for SWS54 Water Sensor Kit, SBS50 Base Station Required, Model SWS51, 1-Pack From $15.99

3 options
Available in additional 3 optionsFrom$1599
X-Sense Wi-Fi Water Sensor, Accessory for SWS54 Water Sensor Kit, SBS50 Base Station Required, Model SWS51, 1-Pack
1664.7 out of 5 Stars. 166 reviews
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Uxcell 55mm Aquarium Tank Water Level Sensor White PP Right Angle Float Switch $8.09

$809
current price $8.09Uxcell 55mm Aquarium Tank Water Level Sensor White PP Right Angle Float Switch
SENRISE Side Mount Duckbill Float Switch Liquid Water Sensor Stainless Steel (withour mercury) From $11.28

4 options
Available in additional 4 optionsFrom$1128
SENRISE Side Mount Duckbill Float Switch Liquid Water Sensor Stainless Steel (withour mercury)
Riousery Water Level Sensor Switch 304 Stainless Steel Liquid Float Controller AC 0-220V (9.06 inches / 23 cm) $14.37

$1437
current price $14.37Riousery Water Level Sensor Switch 304 Stainless Steel Liquid Float Controller AC 0-220V (9.06 inches / 23 cm)
SENRISE Small Liquid Water Level Sensor Stainless Steel Ball Float Switch Tank Level Position Pool Pond $12.69

$1269
current price $12.69SENRISE Small Liquid Water Level Sensor Stainless Steel Ball Float Switch Tank Level Position Pool Pond
11 out of 5 Stars. 1 reviews
BOKYAN 1pc Liquid Water Level Sensor Horizontal PP Side Mount Float Switch 400MM 10W. Durable Plastic Liquid Sensor for Hydroponics and Gardening, 1 Piece, 15.7 inches (400 mm) Cable $10.75

$1075
current price $10.75BOKYAN 1pc Liquid Water Level Sensor Horizontal PP Side Mount Float Switch 400MM 10W. Durable Plastic Liquid Sensor for Hydroponics and Gardening, 1 Piece, 15.7 inches (400 mm) Cable
Nieyigj Cable Float Switch Water Liquid Drainage Level Controller Sensor for Tank Pump, 250V 16A, 4m / 13.1ft Cord, IP68 Waterproof Electrical Switch for Sump Pumps and Pools $25.77

$2577
current price $25.77Nieyigj Cable Float Switch Water Liquid Drainage Level Controller Sensor for Tank Pump, 250V 16A, 4m / 13.1ft Cord, IP68 Waterproof Electrical Switch for Sump Pumps and Pools
Clearance TOPGREENER Motion Sensor Switch, PIR Sensor Light Switch, Operable Without Ground Wire, No Neutral Wire Required, 150W Dimmable LED, TSOS5-KM-W-2PCS, White, 2 Pack From $25.91

Sponsored
From$2591
TOPGREENER Motion Sensor Switch, PIR Sensor Light Switch, Operable Without Ground Wire, No Neutral Wire Required, 150W Dimmable LED, TSOS5-KM-W-2PCS, White, 2 Pack
43.3 out of 5 Stars. 4 reviews
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RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse $22.94 Was $29.95

Now$2294
current price Now $22.94, Was $29.95$29.95
RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse
Saniflo 050 Sanialarm $85.00

$8500
current price $85.00Saniflo 050 Sanialarm
12 out of 5 Stars. 1 reviews
Vertical Stainless Steel Dual Ball Tank Liquid Water Level Sensor Float Switch $13.59

$1359
current price $13.59Vertical Stainless Steel Dual Ball Tank Liquid Water Level Sensor Float Switch
DEEPCRAFF 5Pcs Portable Float Switch Vertical Sensor for Water Pump and Tank Use $11.31

$1131
current price $11.31DEEPCRAFF 5Pcs Portable Float Switch Vertical Sensor for Water Pump and Tank Use
Globe Electric Wi-Fi Smart Water Leak Sensor, No Hub Required, Battery Operated, White, 50027

Globe Electric Wi-Fi Smart Water Leak Sensor, No Hub Required, Battery Operated, White, 50027
83.8 out of 5 Stars. 8 reviews
MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED From $13.46

3 options
Available in additional 3 optionsFrom$1346
MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED
154.5 out of 5 Stars. 15 reviews
M Buder Side Mount Float Switch Liquid Water Level Sensor Horizontal PP Material Duckbill Style Controller Switch for Water Pump and Tank 10W 220VDC (14.0 x 10.0 x 2.0 inches / 35.6 x 25.4 x 5.1 cm) $20.78

$2078
current price $20.78M Buder Side Mount Float Switch Liquid Water Level Sensor Horizontal PP Material Duckbill Style Controller Switch for Water Pump and Tank 10W 220VDC (14.0 x 10.0 x 2.0 inches / 35.6 x 25.4 x 5.1 cm)
Nieyigj Cable Float Switch Water Liquid Drainage Level Controller Sensor for Water Tank Pump 12m / 39.4ft 250V

3 options
Available in additional 3 optionsNieyigj Cable Float Switch Water Liquid Drainage Level Controller Sensor for Water Tank Pump 12m / 39.4ft 250V
TOPGREENER PIR Motion Sensor Switch, Occupancy & Vacancy Modes, No Neutral Wire Required, Ground Wire Required, 5A, 360W LED/CFL, Single Pole, TDOS5 From $19.99

Sponsored
From$1999
TOPGREENER PIR Motion Sensor Switch, Occupancy & Vacancy Modes, No Neutral Wire Required, Ground Wire Required, 5A, 360W LED/CFL, Single Pole, TDOS5
43 out of 5 Stars. 4 reviews
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Clearance TOPGREENER Motion Sensor PIR Light Switch, Occupancy & Vacancy Modes, No Neutral Required, Operable Without Ground Wire, 1.25A, 150W Dimmable LED, Single Pole, TDOS5-KM-BK, Black 2-Pack From $26.39

Sponsored
From$2639
TOPGREENER Motion Sensor PIR Light Switch, Occupancy & Vacancy Modes, No Neutral Required, Operable Without Ground Wire, 1.25A, 150W Dimmable LED, Single Pole, TDOS5-KM-BK, Black 2-Pack
15 out of 5 Stars. 1 reviews
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Topvico Water Leak Detectors for Home, Basements, Sump Pump, Under Sink, Moisture Alarm Sensor, 120dB Battery Operated Flood Alert, 3-Pack (95 Inch Cable) $15.89

$1589
current price $15.89Topvico Water Leak Detectors for Home, Basements, Sump Pump, Under Sink, Moisture Alarm Sensor, 120dB Battery Operated Flood Alert, 3-Pack (95 Inch Cable)
25 out of 5 Stars. 2 reviews
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Riousery Water Level Indicator Alarm Low Water Level Alarm Sensor Waterline Indicating Alarm with Silencer Switch Household Security Device 220V 90dB 49 ft / 15 m Cable $69.73

$6973
current price $69.73Riousery Water Level Indicator Alarm Low Water Level Alarm Sensor Waterline Indicating Alarm with Silencer Switch Household Security Device 220V 90dB 49 ft / 15 m Cable
Reduced price Baoblaze Stainless Steel Float Switch Durable Float Sensor Switch for Water Pump Tank 200mm From $12.99

3 options
Available in additional 3 optionsFrom$1299
Baoblaze Stainless Steel Float Switch Durable Float Sensor Switch for Water Pump Tank 200mm
Black & Decker Smart Wi-Fi Water Sensor $27.99

$2799
current price $27.99Black & Decker Smart Wi-Fi Water Sensor
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Sump Alarm High Water Alarm with 10ft float switch for sump pumps From $129.99

4 options
Available in additional 4 optionsFrom$12999
Sump Alarm High Water Alarm with 10ft float switch for sump pumps
15 out of 5 Stars. 1 reviews
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Unique Bargains 2 Pieces Water Level Monitor Sensor Right Angle Float Switches ZPC1 White $9.99

$999
current price $9.99Unique Bargains 2 Pieces Water Level Monitor Sensor Right Angle Float Switches ZPC1 White
Suodoka Liquid Water Level Sensor Horizontal PP Side Mount Float Switch 400MM (15.7 inches) 10W 220V 0.5A for Hydroponics Gardening Fish Tanks Aquariums Power Head Control Pet Bowls Water Alarm $18.78

$1878
current price $18.78Suodoka Liquid Water Level Sensor Horizontal PP Side Mount Float Switch 400MM (15.7 inches) 10W 220V 0.5A for Hydroponics Gardening Fish Tanks Aquariums Power Head Control Pet Bowls Water Alarm
Nieyigj Duckbill Float Switch 304 Stainless Steel Water Liquid Level Sensor G1/2" DC0-220V 4.3 inches / 108 mm[cite: 1] $17.75
![Nieyigj Duckbill Float Switch 304 Stainless Steel Water Liquid Level Sensor G1/2" DC0-220V 4.3 inches / 108 mm[cite: 1]](https://i5.walmartimages.com/seo/Nieyigj-Duckbill-Float-Switch-304-Stainless-Steel-Water-Liquid-Level-Sensor-G1-2-DC0-220V-4-3-inches-108-mm-cite-1_54a7a8be-92e3-4255-bb1a-1f963cab4af6.fb1737ef10a1d25ddb48305c8255c5f1.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$1775
current price $17.75Nieyigj Duckbill Float Switch 304 Stainless Steel Water Liquid Level Sensor G1/2" DC0-220V 4.3 inches / 108 mm[cite: 1]
Telemecanique Sensors Water Pump Switch, 1/4in FNPS,10-5 psi 9013FRG32J36P $129.86

$12986
current price $129.86Telemecanique Sensors Water Pump Switch, 1/4in FNPS,10-5 psi 9013FRG32J36P
Sump Alarm Water Level Float Switch,15ft,w/ Brckts $24.99

$2499
current price $24.99Sump Alarm Water Level Float Switch,15ft,w/ Brckts
33 out of 5 Stars. 3 reviews
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Float Switch Fluid Water Level Sensing Switch Sensor 12V 24V 1Pc Black $4.79 Was $13.48

Now$479
current price Now $4.79, Was $13.48$13.48
Float Switch Fluid Water Level Sensing Switch Sensor 12V 24V 1Pc Black
1/2PT Liquid Water Level Sensor Horizontal Mounting Floating Switch 70W DC220V $16.08

$1608
current price $16.081/2PT Liquid Water Level Sensor Horizontal Mounting Floating Switch 70W DC220V
Winland Surface Water Sensor, Supervised (W-S-S) $67.88

$6788
current price $67.88Winland Surface Water Sensor, Supervised (W-S-S)
Telemecanique Sensors Water Pump Switch, 1/4in FNPS, 5-80 psi 9013FYG2J21 $47.26

$4726
current price $47.26Telemecanique Sensors Water Pump Switch, 1/4in FNPS, 5-80 psi 9013FYG2J21
16 Ft Float Switch Sensor Water Sump Pump Contractor NO/NC Controller Pump Switch $29.99

$2999
current price $29.9916 Ft Float Switch Sensor Water Sump Pump Contractor NO/NC Controller Pump Switch
2pcs Water Liquid Level Sensor Vertical Float Switch 36mm ZP2508 $12.16

$1216
current price $12.162pcs Water Liquid Level Sensor Vertical Float Switch 36mm ZP2508
1/4" NPT Water Flow Switch Practical PE Tube Liquid Flow Sensor Switch for Home $10.89

$1089
current price $10.891/4" NPT Water Flow Switch Practical PE Tube Liquid Flow Sensor Switch for Home
Water Leak Monitoring Sensor with Alarm 3 Pack - Leak Puppy Electronic Water & Flood Leak Detector - Detects as Little as 1/32" of Water - Overflow Alert Sensor Beeps Loudly When Water is Detected $39.95

$3995
current price $39.95Water Leak Monitoring Sensor with Alarm 3 Pack - Leak Puppy Electronic Water & Flood Leak Detector - Detects as Little as 1/32" of Water - Overflow Alert Sensor Beeps Loudly When Water is Detected
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Other options to consider(153)
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