--- product_id: 6141542 title: "Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm!" brand: "prevalert" price: "FREE" currency: TND in_stock: false reviews_count: 10 url: https://www.desertcart.tn/products/6141542-basement-water-alarm-prevalert-water-leak-detector-full-lifetime-100 store_origin: TN region: Tunisia --- # Detects water at 1/32 inch 100 dB sound level 9V battery included Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! **Brand:** prevalert **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Stay Dry, Stay Smart! Your home’s first line of defense against water damage. ## Quick Answers - **What is this?** Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! by prevalert - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/6141542-basement-water-alarm-prevalert-water-leak-detector-full-lifetime-100) ## Best For - prevalert enthusiasts ## Why This Product - Trusted prevalert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Peace of Mind:** Your affordable insurance against unexpected leaks and floods. - β€’ **Instant Alerts:** Receive immediate notifications with a loud 100 dB alarm. - β€’ **Long-lasting Power:** Enjoy 3 years of worry-free operation with the included battery. - β€’ **Protect Your Space:** Prevent costly water damage with this essential device. - β€’ **Compact & Efficient:** Sleek design fits seamlessly in any area, from basements to bathrooms. ## Overview The Prevalert Water Leak Detector is a compact and efficient device designed to alert you of water leaks with a powerful 100 dB alarm. It includes a 9V battery that lasts up to 3 years, ensuring you have long-lasting protection against costly water damage in your kitchen, bathroom, or basement. With the ability to detect water at just 1/32 inch depth, this device is an essential addition to any home. ## Description Water leaks can be costly and extremely inconvenient! This Prevalert Water Leak Alarm will detect and alert you when a water leak occurs. For installation in sump pits or near areas requiring water monitoring like hot water heaters, air conditioners, washing machines, under sinks or even to save your boat bilge pump from flooding. Requires a 9-volt battery (included!). Detects water only 1/32-Inch deep when the alarm is placed on the floor. The Sensor has a 60 inch wire so it can be extended into a sump pit, or mounted on a wall and stretched to another location. Loud 100dB alarm. Consider one for the basement, one for the kitchen, the bathroom, or anywhere that water may become a hazard. Keep your home safe and secure with the Water Alarm. No Assembly Required. Reliable and loud sump pump/flood alarm. Sounding a loud alarm signal exceeding 100 dB at 10 feet Using advanced electronic design to accurately detect the water leakage Fully automatic operation Free Standing or Wall Mounted Specifications: 1.Material: ABS 2.Dimensions: 104.5mm x 68mm x 29.5mm 3.Weight: 84g without battery 4.Battery Type: 9V DC BLOCK Battery (included - 3 year life) 5.Battery Life:100 hours of continuous use (Up to two years depending on use) 6.Sound Intensity: 100dB @ 10 feet (3.0 m) 7.Operating Temperature:32Β°Fto 120Β°F (0℃ to 49℃) 8.Humidity:80%RH (non-condensing) 9.Shock Resistance:Shock resistant from a 6-ft (1.8 m) drop onto concrete 10.Water Resistance: Splash and water resistant, but not waterproof 11.Detachable water sensor with a 5 foot line cord (1.8m) included 12. Low battery warning - just set it and forget it and it will chirp when the battery needs replacing. 13. Lifetime warranty (Excluding battery) ## Features - 9 VOLT ALKALINE BATTERY INCLUDED - no need to buy a new battery for this unit for up to 3 years. - LOW BATTERY CHIRP ALERT - when the battery is low the unit will sound to let you know to replace it. - DETECTS WATER at less than 1/32 inch depth. Water only needs to be touching both sensors to alarm - 100 HOURS of continuous sound at over 100dB loud to alert you of a water leak. Great Value! - BUY this INEXPENSIVE insurance device today and AVOID COSTLY REPAIRS Also great for sumps and bilges ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Prevalert | | Part Number | P312L | | Item Weight | 4.5 ounces | | Product Dimensions | 2.5 x 1 x 4 inches | | Item model number | P312L | | Is Discontinued By Manufacturer | No | | Color | White | | Material | abs | | Power Source | Battery Powered | | Voltage | 9 Volts | | Item Package Quantity | 1 | | Sound Level | 100 dB | | Batteries Included? | Yes | | Batteries Required? | Yes | ## Images ![Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! - Image 1](https://m.media-amazon.com/images/I/41PyiNTYtIL.jpg) ![Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! - Image 2](https://m.media-amazon.com/images/I/61Dlau1RNNL.jpg) ![Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! - Image 3](https://m.media-amazon.com/images/I/7110KP2gUHL.jpg) ![Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! - Image 4](https://m.media-amazon.com/images/I/41AK6PEm3KL.jpg) ![Basement Water Alarm. Prevalert Water Leak Detector FULL Lifetime 100% Satisfaction Guarantee! 9v Battery Included (3yr Life) Prevent Costly Water Damage to Kitchen Bathroom & Basement. Similar to Basement Watchdog & BONUS Low Battery Alarm! - Image 5](https://m.media-amazon.com/images/I/31HkLwyMKRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Simple, effective water alarm *by F***H on Reviewed in the United States on July 29, 2015* Very compact and simple water alarm. We put it in our hi-rise's air conditioning closet to alert us if the condensate drain is leaking, a common problem in older buildings. Several units and hallways have been damaged due to this, and even a device that automatically shuts off the water supply main will not prevent A/C water damage, as it is a separate system. We placed the main unit just behind the return air vent so it is completely invisible but very audible. We figure if we're home and the alarm goes off we can take care of it, and if we're gone, our security system picks up the audio alarm and will alert us as a "loud noise" alarm and we can have building maintenance take care of it. Sensitivity is good, we tested it with a slight amount of water under the A/C unit and confirmed that the alarm was loud enough for the security microphone to detect. Nice product.. ### ⭐ 1.0 out of 5 stars DO NOT BUY! Unit lasted 8 months and now I can't contact the company for their lifetime warranty. *by M***Y on Reviewed in the United States on July 15, 2018* This unit didn't last 8 months. And the 3-year battery life only lasted 4 months. I replaced their generic battery with a fresh name brand battery, but alas, it only lasted 4 months as well. After placing the 3rd battery in this unit in an 8 month period, I heard static coming from the speaker so I tested it by placing metal across the contacts to make it alarm, but it wouldn't alarm. So no problem, this unit comes with a FULL Lifetime 100% Satisfaction Guarantee! I quickly sent an email off to the company for information on how to return it, uh-oh, another problem. My email cannot be delivered because there was a problem with the recipient's email system. Now what? Buyer beware, not a reputable company to do business with. Amazon should drop them for not honouring their word. ### ⭐⭐⭐⭐ 4.0 out of 5 stars Works Well, can save a lot of money. *by E***5 on Reviewed in the United States on July 2, 2017* Works well, nice form factor --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/6141542-basement-water-alarm-prevalert-water-leak-detector-full-lifetime-100](https://www.desertcart.tn/products/6141542-basement-water-alarm-prevalert-water-leak-detector-full-lifetime-100) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-20*