Ecolink Z-Wave Plus Flood & Freeze Sensor — White, 36-inch Probe, 5-Year Battery

The Ecolink Z-Wave Plus Flood & Freeze Sensor (FLF-ZWAVE5-ECO) is a compact smart sensor that detects water leaks and low temperatures, sending timely Z-Wave alerts to protect pipes and belongings.

This white, battery-powered sensor combines a long probe, precise temperature triggering, and Z-Wave Plus compatibility to monitor vulnerable locations in your home. Its low-profile housing and 36-inch probe let you position the sensing tip exactly where leaks are likely to start — under sinks, behind appliances, or beside toilets — while the device itself stays unobtrusive where wiring or space is limited.

How quickly will the sensor detect a leak?

The sensor uses a 36-inch conductive probe to spot water as soon as it reaches the probe contact points, relaying a Z-Wave alert to your hub immediately. Placement matters: set the probe tip at the lowest point where pooling would occur for fastest notification.

• 36 in (approx. 91 cm) probe for remote detection
• Instant Z-Wave Plus communication to compatible hubs
• Compact main unit fits under sinks and in tight spaces

Can it help prevent frozen pipes or cold-damage?

The device includes a freeze threshold that triggers an alert at 41°F (5°C), so you can take action before freezing temperatures cause problems. Because it reports temperature events through Z-Wave, you can automate responses like turning on a smart thermostat or space heater when low temperatures are detected.

• Freeze trigger at 41°F / 5°C for early warning
• Works with Z-Wave scenes and thermostat automation
• Useful in crawlspaces, basements, and utility rooms

How long does the battery last and how is it powered?

The sensor runs on a single CR123A lithium battery and is rated for up to five years of typical use, reducing maintenance visits. The low-power Z-Wave Plus radio conserves energy while keeping the device responsive for event reporting.

• Single CR123A lithium battery operation
• Estimated five-year battery life under normal conditions
• Low-power Z-Wave Plus radio for efficient communication

Where should I install the sensor for best protection?

Install the probe so its tip touches the floor or the lowest point where water would collect; mount the main body nearby but out of the way. Common spots include under sinks, next to toilets, behind washing machines or refrigerators, and near water heaters or sump pumps.

• Under kitchen and bathroom sinks for hidden leaks
• Behind appliances like refrigerators and washing machines
• Near water heaters, sump pumps, and basement drainage

Who is this for? The Ecolink FLF-ZWAVE5-ECO suits homeowners, landlords, and property managers who want reliable, low-maintenance protection against water damage and freezing risks without running wires. It's appropriate for anyone using a Z-Wave smart home hub who needs a compact sensor to automate alerts and actions — from DIY installers to professional integrators. Place it wherever leaks or low temperatures could cause costly repairs, and pair it with your Z-Wave ecosystem for automated responses and peace of mind.