--- product_id: 373614163 title: "Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs" brand: "topvico" price: "$2.84" currency: USD in_stock: false reviews_count: 13 url: https://www.desertcart.us/products/373614163-water-leak-sensor-detector-flood-alarm-for-basement-120db-work store_origin: US region: United States of America --- # 37.8-inch sensor cable 120dB loud alarm 12-month battery life Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs **Brand:** topvico **Price:** $2.84 **Availability:** ❌ Out of Stock ## Summary > 🚨 Stay Dry, Stay Ahead – Don’t Let Leaks Catch You Off Guard! ## Quick Answers - **What is this?** Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs by topvico - **How much does it cost?** $2.84 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/373614163-water-leak-sensor-detector-flood-alarm-for-basement-120db-work) ## Best For - topvico enthusiasts ## Why This Product - Trusted topvico brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Long-Lasting Power:** Up to 12 months of reliable battery life with a single 9V alkaline battery. - β€’ **Hear It Loud & Clear:** 120dB alarm ensures you and your neighbors never miss a leak alert. - β€’ **Effortless Installation:** Double-sided adhesive and two fixing styles make setup a breeze anywhere. - β€’ **Extended Reach Detection:** 37.8-inch cable easily extends over 150 feet for versatile placement. - β€’ **Ultimate Leak Protection:** High-sensitivity 24k plated sensor board detects water early to prevent costly damage. ## Overview The Topvico Water Leak Sensor Detector is a professional-grade, battery-operated flood alarm system featuring a piercing 120dB alert, a highly sensitive 24k plated detection board, and a 37.8-inch cable extendable up to 150 feet. Designed for easy installation with double-sided adhesive and versatile fixing options, it offers up to 12 months of battery life to protect basements, kitchens, sump pumps, and more from water damage. ## Description Low cost and effective water leak alarm to prevent water damage at your home and business, suit for basement water alarm, water heater leak, etc- Quantity: 3 pack- 120dB loud alarm voice - High sensitive detect board - Small size, double side paster for easy install - 37.8 inches cable, easy extend by user - Supply by 9V battery (not include, suggest use brand Alkaline battery), battery life will be about 12 months for normal use (low quality battery about 6 months, very high frequency alarm or testing, battery life will be shorter)Note: If the detection board is placed directly on metal, please put a piece paper under the board to avoid false alarms. Review: Simple, dependable and LOUD! - If you've ever had a flood caused by someone leaving a bath running, an under-sink or utility room leak from a washing machine etc. you'll know what a nightmare it is. Downstairs it's a pain, upstairs is a disaster. These tiny things can be fitted by a complete Numptie. You need a 9v PP3 battery, peel the backing tape off, stick it on, switch it on - you're done. Like smoke alarms, they should be good for many month but you can check them by simply dabbing a bit of water/spit on the sensor plate and it should let off a loud squalk. A really great little unit. Even better, you get three - and they're cheap. Review: easy to set up and work well. - simple design , easy to set up and work well. ## Features - 120dB loud alarm voice, keep alarm to notice you or neighbors until the water dry or sensor turn off (easy to hear the alarm coming from the basement), low cost and effective water leak alarm to prevent water damage at your home and business - High sensitive 24k plating detect board, repeated use after dry the board (if you no need high sensitivity, please try "B0BYHS79W5" with similar cost) - Upgrade to our double-sided paster / sticker for easy installation anywhere. One part is for the host and the other part is for the water detection board. There are two fixing styles optional for the detect board, as shown in the description photo. Choose between two fixing styles based on your needs - 37.8 inches cable, easy extend more than 150 ft. of wire by user (normal electric wire available, not include), detect water anywhere corner (good for detecting when the sump pump has reached a high water level), suit for basement, heater leak, underground, washing machine, kitchen, sump pump overflow, etc - Supply by 9V battery (not include, suggest use brand Alkaline battery), battery life will be about 12 months for normal use (low quality battery about 6 months, very high frequency alarm or testing, battery life will be shorter) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07311Z536 | | Battery Description | Alkaline | | Battery description | Alkaline | | Best Sellers Rank | 194,085 in DIY & Tools ( See Top 100 in DIY & Tools ) 53 in Water Detectors | | Brand | Topvico | | Colour | White | | Control Method | App | | Customer Reviews | 4.5 out of 5 stars 1,802 Reviews | | Item Dimensions L x W x H | 9.7L x 4.5W x 2.2H centimetres | | Item Weight | 0.11 Pounds | | Manufacturer | Topvico | | Maximum Range | 150 Feet | | Model Number | TP-206W-3 | | Mounting Type | Adhesive | | Number of Batteries | 1 9V batteries required. | | Number of batteries | 1 9V batteries required. | | Part Number | TP-206W | | Power source | Battery Powered | | Product dimensions | 9.7L x 4.5W x 2.2H centimetres | | Sensor Technology | Water Detection Sensor | | Size | 3 Pack (120dB/37.8" Cable) | | Smart Home Compatibility | Not Smart Home Compatible | | Sound Level | 120 Decibels | | UPC | 603894417086 | | Unit Count | 3.0 count | | Voltage | 9 Volts | ## Product Details - **Colour:** White - **Brand:** Topvico - **Power source:** Battery Powered - **Product dimensions:** 9.7L x 4.5W x 2.2H centimetres - **Battery description:** Alkaline ## Images ![Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs - Image 1](https://m.media-amazon.com/images/I/61D1ty6YU7L.jpg) ![Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs - Image 2](https://m.media-amazon.com/images/I/71vicOhVZvL.jpg) ![Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs - Image 3](https://m.media-amazon.com/images/I/71NkwOVvHOL.jpg) ![Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs - Image 4](https://m.media-amazon.com/images/I/611j1UGKwHL.jpg) ![Water Leak Sensor Detector Flood Alarm for Basement 120dB Work Alone Battery Operated 3 Packs - Image 5](https://m.media-amazon.com/images/I/61PevAE9znL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple, dependable and LOUD! *by L***N on 30 December 2025* If you've ever had a flood caused by someone leaving a bath running, an under-sink or utility room leak from a washing machine etc. you'll know what a nightmare it is. Downstairs it's a pain, upstairs is a disaster. These tiny things can be fitted by a complete Numptie. You need a 9v PP3 battery, peel the backing tape off, stick it on, switch it on - you're done. Like smoke alarms, they should be good for many month but you can check them by simply dabbing a bit of water/spit on the sensor plate and it should let off a loud squalk. A really great little unit. Even better, you get three - and they're cheap. ### ⭐⭐⭐⭐⭐ easy to set up and work well. *by A***O on 30 May 2026* simple design , easy to set up and work well. ### ⭐⭐⭐⭐ Works *by B***G on 14 March 2023* Good value Works well Detects damp material Very loud alarm ## Frequently Bought Together - Topvico Water Leak Sensor Detector Flood Alarm for Basement RV Moisture 120dB Work Alone Battery Operated 3 Packs - Amazon Basics 8-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & Audio - THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm --- ## 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.us/products/373614163-water-leak-sensor-detector-flood-alarm-for-basement-120db-work](https://www.desertcart.us/products/373614163-water-leak-sensor-detector-flood-alarm-for-basement-120db-work) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-17*