Topvico Water Leak Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 5-Pack
Topvico Water Leak Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 5-Pack
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Topvico Water Leak Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 5-Pack

Topvico Water Leak Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Sensor, 120dB Battery-Operated Flood Alarm, 5-PackTopvico Water Leak Alarms for Basements Heater Leak Detector Sump Pump Overflow Sensor 120dB Battery Operated Flood Alarm 5 PackTopvico Water Leak Alarm for Basements Heater Leak Detector Sump Pump Overflow Sensor 120dB Battery Operated Flood Alarm 2 PackTopvico Water Leak Alarm for Basements Heater Leak Detector Sump Pump Overflow Sensor 120dB Battery Operated Flood Alarm 1 PackTopvico Water Alarms for Basements Heater Leak Detector Sump Pump Overflow Moisture Flood Sensor 120dB Work Alone Battery Operated 3 PacksTopvico Water Alarms for Basements Heater Leak Detector Sump Pump Overflow Moisture Flood Sensor 120dB Work Alone Battery Operated 10 Packs
Count Per Pack:5

Key item features

  • – The powerful 120dB alarm notifies you and your neighbors as soon as a leak is detected. The alarm continues until the water dries or the sensor is turned off, ensuring you don’t miss a potential flood, even from the basement. A cost-effective solution to prevent water damage in homes and businesses.
  • – Equipped with a premium 24K plated detection board for maximum sensitivity. Designed for repeated use—simply dry the sensor board after activation, and it’s ready to use again.
  • – Features a double-sided adhesive sticker for effortless installation. One part secures the alarm unit, while the other attaches the water detection board. Choose from two mounting styles, as shown in the product images, to best fit your needs.
  • – The included cable allows easy placement in tight corners, and users can extend it up to 150 feet with standard electrical wire (not included). Ideal for monitoring sump pumps, basements, water heaters, washing machines, kitchens, and more.
  • – Operates on a 9V battery (not included; good brand alkaline battery recommended). Provides up to 12 months of battery life under normal use. Low-quality batteries may last around 6 months, while frequent alarms or testing can shorten battery life.
Current price is $22.59
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4.7407407407407405 stars out of 5, based on 27 seller reviews(4.7)
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Customer ratings & reviews

4.6 out of 5 stars
stars40 ratings28 reviews
How item rating is calculated
  1. 5 stars65% (26)
  2. 4 stars28% (11)
  3. 3 stars5% (2)
  4. 2 stars3% (1)
  5. 1 star0% (0)
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Showing 1-3 of 28 reviews

Dec 9, 2025
Walmart customer
Item details
Count per pack: 5
Sold and shipped byTopvico
5 out of 5 stars review

Verified Purchase

Topvico alarms as stated.

Product performed well. Three weeks in position, it alerted a small leak under the kitchen sink. Use Topvico's advice to wrap the detector with a paper towel to increase the surface area it monitors. The towel was wet, not cabinet, when a low volume buzz was heard. Will update later with battery life. This inexpensive device saved hundreds in water mitigation.

Helpful?5DCWGITZZLJP15904265416
Sep 14, 2025
anonymous
Item details
Count per pack: 3
Sold byTopvicoDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Smart design and peace of mind

I bought these water alarms for a rental home. I was able to place a unit under both sinks and in the hot water heater pan. The lengthy wire on the sensor allowed me to position the battery case at a distance from the sensor near the front of the vanity cabinet and heater unit so it is easily accessible to anyone to turn on and off and to change the batteries. It is also off the bottom so it will not be exposed to any water if there is a leak. Only the sensor would be exposed to water. That is the advantage of this design. All the units tested fine and the alarm sound is loud which is important. I'm glad I purchased these because there have been issues in the past. I plan to purchase additional alarms for the main house. They give a great sense of relief.

Incentivized Review
Helpful?5DCWGITZZLJP15904265416
Jan 19, 2026
Walmart customer
Item details
Count per pack: 3
Sold byTopvicoDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Moisture Alarm Detection

Seller fulfilled order in reasonable time. My second order as the device already alerted me to a small leak. Use the paper towel wrap to increase the detection area. I would buy more, but everything has an alarm now.

Incentivized Review
Helpful?5DCWGITZZLJP15904265416