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Water Alarm Systems

Save yourself money and the hassles of repairing and replacing water damaged property with one of our many water alarms, offered to you by PlumbingSupply.com®! We offer an excellent selection of water detection devices - from value-priced low-voltage alarms to duplex systems. Take a look at our selection and you'll see that we have something for nearly every water detection situation.

Great selection of Water Alarms

Low Voltage Water Alarm

Sonin #700 low voltage water alarm
This low-voltage water alarm features:
  • Remote sensor detects water and sounds alarm
  • Sensor and alarm connected by 6' of wire
  • Adaptable with standard speaker wire (not included) for locating up to 50' apart
  • Solid state electronics powered by 9-volt battery (not included)
  • 85-decibel alarm sounds for up to 3 days
  • Low battery warning
  • Test bar for system check

Description Price & Quantity
Sonin #700 (Like Little Giant #513350) $21.89

Order 6 or more of the Sonin #700 for additional savings.
Order 12 or more of the Sonin #700 for even greater savings!

Pricing discounts will show up in your shopping cart.


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High OR Low Water Alarm

high or low water alarm
This high or low water alarm features:
  • User safe 9-volt AC power, 9-volt DC backup
  • 6 foot AC cable, 10 foot float cable
  • Easy conversion from high water to low water alarm
  • 90 to 95 Decibel sound alarm
  • Reliable non-mercury float switch
  • Easy installation
  • Attachment strap included
  • Corrosion resistant ABS float
  • UL listed and CSA approved 9-volt transformer and float system
  • 1 year manufacturer's limited warranty

Description Price & Quantity
High or Low Water Alarm $44.83

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Tank Alert AB Indoor Water Alarms

Tank Alert water alarm systemsTank Alert® AB indoor alarm
  • NEMA 1 enclosure rated for indoor use
  • Automatic alarm reset
  • Red "alarm" light and green "power on" light, alarm "test" switch, and horn "silence" switch
  • Alarm horn sounds at 86 decibels at 10 feet (3 meters)
  • Can be used with any UL listed switching mechanism rated to include 1 amp, 12 VDC load
  • If primary power fails, the alarm system continues to work due to battery backup (9 volt DC)
  • Complete package includes standard SJE SignalMaster® control switch with 15 feet (4.57 meters) of cable and mounting clamp
  • Switching mechanism operates on low voltage and is isolated from the power line to reduce the possibility of shock
  • Low battery chirp
  • External terminal block for easy float switch installation.
  • Approximately 2.73 lbs.
  • CSA certified and UL pending

Part # Description Price & Quantity
TA AB-01H Tank Alert - 120 VAC w/15' SJE SignalMaster®
High - this alarm is triggered by high water levels
$104.87
TA AB-01L Tank Alert - 120 volts AC w/15' SJE SignalMaster®
Low - this alarm is triggered by low water levels
$105.33

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Indoor/Outdoor Highwater Alarm

indoor/outdoor highwater alarm
Type 3R watertight thermoplastic enclosure. Mechanical float switch with 15' cable. Alarm has red warning light, horn with silence switch and test button. Includes pre-mounted terminal block so enclosure can also be used as a junction box. 115 volt.

Description Price & Quantity
#303HWXT Highwater alarm $199.84

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Indoor/Outdoor Duplex Controller and Alarm

This easy-to-install NEMA 4X waterproof fiberglass enclosure includes: duplex pump control and alarm device, pump alternator, visual and audible alarm an light system with silence switch, three floats, one each for high water, pump on and pump off. Floats have 20' (6m) power cords. HOA switch offers either hand-off or automatic operations.

Model # Phase Amps Volts Price & Quantity
#1221W120H17A 1 0-20 120/208/240 $953.07
#3221W201H17A 3 2.5-4.0 208/240/480 $1,612.37
#3221W511H17A 3 9-14 208/240/480 $1,688.79

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Controls - Simplex systems

Single Phase

single phase control
Indoor/outdoor simplex alarm system and pump control. NEMA 4X waterproof fiberglass enclosure. Includes control panel with audible alarm, silence switch and red flashing lights; a pump float and an alarm float. Floats have 20' power cords. HOA switch offers either hand, off or automatic operations.

Model# Phase Amps Volts Price & Quantity
#1151W200H17A 1 0-15 115/230 $589.15
#1121W120H17A 1 0-20 120/208/230 $689.68

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Three Phase

three phase pump control
Indoor/outdoor simplex alarm system and pump control. NEMA 4X waterproof fiberglass enclosure. Includes control panel with audible alarm, silence switch and red flashing lights; three floats, one each for highwater, pump on and pump off. Floats have 20' power cords. HOA switch offers either hand, off or automatic operations.

Model# Phase Amps Volts Price & Quantity
#3121W611H 1 10-16 208/230 $1,497.94

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Failed Circuit Alarm

Failed circuit alarm: signals an alarm when a circuit has failed. It's designed for use on freezers, hot tubs, heat lamps for animals, pumps, etc. It can be used with any 110v/120v appliance where it is important to know if the breaker or fuse has blown (or any power outage).

failed circuit alarm
This failed circuit alarm features:
  • Alerts you when a circuit has tripped (failed)
  • 85 to 90 decibel buzzer (9 volt DC)
  • Outlet saving 15 amp with "piggyback" plug
  • 110/120 volt, toggle on/off switch
  • Test button
  • Mounts up to 6 feet from outlet
  • Easy installation and a 1 year manufacturer's limited warranty
  • Fits standard 110V outlet.
  • Unit has an outlet saving "piggyback" style plug.

Description Price & Quantity
Failed Circuit Alarm $43.48
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