Water Overflow Sensor – 27″ Wire, Suction Cup Mount

A slow leak under the washing machine or a water heater that finally gives out rarely announces itself loudly—until the floor is soaked and the damage is done. The Water Overflow Sensor gives you an early warning by triggering your PAL-1 or PAL-1LIGHT alarm unit the moment the detection wire contacts water, putting you in a position to act before a drip becomes a disaster.

Who This Sensor Is For

This sensor is built for homeowners and renters who run appliances in areas they don’t monitor constantly. If your laundry room is in the basement, your water heater is in a utility closet, or your sump pump sits unattended for weeks at a time, a water contact sensor at floor level is a practical line of defense. It’s also well-suited for landlords managing multiple units who want passive flood detection without complex installation.

Is It the Right Fit for You?

Choose It If You Want

• A simple, low-profile sensor that pairs with an existing PAL-1 or PAL-1LIGHT unit
• A 27″ wire that can reach along baseboards or under appliances
• Suction cup mounting that requires no drilling or tools
• Passive protection in areas you check infrequently

Consider Another Option If You Need

• A standalone alarm with a built-in sounder—this sensor requires a compatible alarm unit to produce sound
• Wireless or Wi-Fi-connected flood detection with smartphone alerts
• Coverage across multiple rooms from a single device

Water Overflow Sensor Features and Benefits

• PAL-1 and PAL-1LIGHT Compatibility: Plugs directly into compatible alarm units, extending your existing home alarm system without additional hardware.
• 27-Inch Detection Wire: The 27.13″ wire lays flat along floors, baseboards, or behind appliances to intercept water at the source.
• Instant Water Contact Trigger: The sensor activates the connected alarm the moment the wire touches standing water, minimizing response time.
• Suction Cup Mount Included: Attaches to smooth surfaces—appliance sides, tile walls, or cabinetry—without adhesives or hardware.
• Lightweight Build: At 0.1 lbs, the sensor adds no meaningful weight or bulk to any installation surface.
• Versatile Placement: Designed for washing machines, water heaters, bathtubs, sump pump pits, and basement floors where water accumulation is a risk.
• Black Housing: Low-profile black finish blends into most utility and laundry room environments without drawing attention.

How the Water Overflow Sensor Compares

Understanding where this sensor fits relative to other flood-detection options helps you choose the right level of protection for your situation.

Installation, Care, and What’s Included

What’s in the Box

• Water Overflow Sensor with 27.13″ detection wire
• Suction cup mount

Installation and Care

Attach the suction cup to any smooth, clean surface near the appliance or area you want to monitor, then route the detection wire along the floor toward where water would first collect. Connect the sensor to a PAL-1 or PAL-1LIGHT alarm unit to complete the setup. Periodically wipe the wire and sensor body with a dry cloth to remove dust or mineral deposits that could affect sensitivity. No batteries or charging are required for the sensor itself—power comes through the connected alarm unit.

Legal Notes

Personal and home alarms, including water detection sensors, are not subject to the carry or ownership restrictions that apply to other self-defense products. No special permits are required to purchase or use this sensor.

Water Overflow Sensor: Frequently Asked Questions

Does the Water Overflow Sensor work on its own, or does it need another device?

The Water Overflow Sensor requires a compatible PAL-1 or PAL-1LIGHT alarm unit to produce an audible alert. The sensor itself detects water contact and sends the signal; the alarm unit generates the sound. If you don’t already own a compatible unit, you’ll need one to complete the setup.

Where is the best place to position the Water Overflow Sensor?

Place the sensor where water would pool first—directly behind a washing machine, beneath a water heater, at the low point of a basement floor, or along the edge of a bathtub. The 27″ wire gives you enough reach to position the detection surface away from the mount point, so you can secure the body on a wall or appliance side while the wire contacts the floor.

How is the sensor mounted?

The included suction cup attaches to any smooth, non-porous surface—tile, appliance panels, painted drywall, or cabinetry. No drilling, screws, or adhesive tape are needed, which also makes repositioning straightforward if you move the appliance or reconfigure the space.

Can the Water Overflow Sensor be used in multiple locations around the home?

Each sensor connects to one alarm unit at a time. For multiple locations—a basement and a laundry room on a different floor, for example—you would need a separate sensor and alarm unit for each area. The sensor’s light weight and tool-free mount make it practical to deploy in more than one location over time.

Add Early Flood Detection to Your Home Setup

Water damage rarely waits for a convenient moment. Add the Water Overflow Sensor to your cart today and pair it with a PAL-1 or PAL-1LIGHT alarm unit to put a reliable early-warning layer in every high-risk room in your home.