130dB Standalone Water Leak Sensor Detector – Flood Alarm

Keep your home protected from unexpected water damage with this 130dB Water Leak Sensor Detector. Designed to work completely on its own — no smart hub or Wi-Fi required — this standalone flood alarm sounds a powerful 130-decibel alert the moment water is detected, giving you critical early warning before minor leaks become major problems.

Built from durable ABS housing and powered by a single 9V (6F22) battery, it's simple to set up and ready to deploy anywhere moisture could be a threat: under sinks, near water heaters, beside washing machines, in basements, or around bathrooms.

Key Features

• 130dB Loud Alarm — An ear-catching alert that cuts through background noise so you never miss a leak
• Standalone Operation — Works independently with no hub, app, or network connection needed
• Sensitive Water Detection — Measurement accuracy within ±1–3 cm for fast, reliable triggering
• Durable ABS Construction — Rugged, moisture-resistant housing built for long-term use
• Battery Powered — Runs on 1 × 6F22 (9V) battery (not included), so placement is never limited by outlet location
• Compact & Discreet — White finish blends into any home environment
• Easy Setup — No tools, no wiring; just insert the battery and place it where you need it

Specifications

• Model: AF9700 / A02F
• Color: White
• Material: ABS
• Alarm Volume: 130 dB
• Power Supply: 1 × 6F22 (9V) battery (not included)
• Detection Accuracy: ±1–3 cm
• Operation Mode: Standalone (no hub required)

What's in the Box?

• 1 × Water Leak Detection Alarm Unit

Battery not included. Other products shown in images are not included.

Where to Use It

This water leak detector is ideal for placement in high-risk moisture areas around the home, including under kitchen and bathroom sinks, near dishwashers and washing machines, around water heaters and boilers, in basements, crawl spaces, and laundry rooms.

For more information on home water safety and flood prevention best practices, visit the U.S. Department of Homeland Security – Ready.gov Flood Preparedness Guide. You can also review home safety product guidelines at the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: How does the 130dB water leak sensor detector work?

A: The detector uses sensitive water-contact probes at its base. When water touches the probes, the unit immediately triggers a powerful 130-decibel alarm to alert you of a potential flood or leak. It operates completely on its own — no Wi-Fi, smart home hub, or app is required, making it one of the simplest and most reliable standalone water alarm options available.

Q: What battery does this water leak detector use?

A: The detector is powered by a single 6F22 (9-volt) battery, which is not included in the package. The battery-powered design means you can place the sensor anywhere — under sinks, near appliances, or in basements — without being restricted by outlet locations.

Q: Where are the best places to install a water leak sensor detector?

A: The most effective locations are anywhere water pooling or leakage is a risk: directly under kitchen or bathroom sinks, beside dishwashers and washing machines, near water heaters or boilers, in basement corners, and close to any pipe connections. Place the sensor flat on the floor so the detection probes make contact with water as soon as a leak begins.

Q: Is this water leak alarm easy to set up?

A: Yes — setup is completely tool-free. Simply insert a 9V battery, place the unit in your chosen location with the sensor probes facing down, and it's ready to detect. There's no wiring, no app to configure, and no network to connect to.