8 Best Water Leak Detectors (2025), Tested and Reviewed

Other Leak Detectors We Like

First Alert L1 Wi-Fi Water Leak and Freeze Detector for $64: This ample flood sensor, branded First Alert, useful pinch First Alert aliases Resideo apps and accessories. It sends push notifications and emails to alert you to immoderate leak and sports a 100-decibel siren that you tin extremity pinch nan broadside button. The sensor was comparatively slow to alert successful each my tests, and nan push notifications only came done erstwhile my telephone was connected to Wi-Fi. The 5-foot h2o sensing cablegram allows you to screen a overmuch larger area, and I recovered it alerted faster. The detector connects straight to Wi-Fi, truthful you request a decent signal. This sensor tin besides way somesthesia and humidity, but not very accurately (it consistently overestimated somesthesia and underestimated humidity). The 2 AA batteries provided are expected to past up to 2 years.

Eufy Security Water and Freeze Sensor for $35: If you person a Eufy information system, this could beryllium nan champion h2o leak detector for you, but it requires a HomeBase 2 aliases HomeBase 3 ($150) to link to. It proved speedy and reliable to alert, offers long-range connectivity (up to 200 meters), and tin pass you if nan somesthesia drops beneath freezing. You person alerts connected your telephone via nan Eufy Security app, and you tin configure nan connected HomeBase to sound an alarm, but nan detector doesn’t make immoderate sound. You tin way artillery life successful nan app. A afloat artillery lasts up to 2 years. Sadly, it doesn’t show nan temperature; it simply alerts beneath freezing.

Ikea Badring for $12: Super affordable, pinch a elemental design, this Zigbee detector alerted reliably during testing. The Ikea Badring is simply a bully prime if you already person an Ikea Dirigea hub ($109) to link to for notifications connected your phone. But it useful retired rather pricey if you don't, and it's not compatible pinch different hubs, specified arsenic nan Ikea Tradfri. It does person an alert sound that goes arsenic precocious arsenic 90 decibels, but only astatine proximity; it doesn’t transportation far, and I wouldn’t trust connected it alone. You must proviso your ain AAA battery, and this leak detector is only IP44 rated, truthful there’s a consequence of malfunction if it gets immersed.

SwitchBot Water Leak Detector for $19: This rectangular detector triggered swift alerts successful each my tests pinch a 100-decibel alarm. With prongs connected apical and underneath, this instrumentality was speedy to observe water. It connects straight to Wi-Fi, truthful you don’t request a hub, and it tin nonstop push notifications and emails, though you must group them up successful nan app. Unfortunately, nan push notifications did not travel done erstwhile I was retired of nan house, connected to a cellular web alternatively of Wi-Fi. Smart home connectivity is bully (Amazon Alexa, Google Assistant, and IFTTT), and you tin group up automation successful nan SwitchBot app, which makes this a versatile option, peculiarly if you person different SwitchBot devices. SwitchBot says nan 2 AAA batteries provided are bully for up to 2 years.

AiDot Winees Water Leak Detector S1 Plus (3 Pack) for $60: Connect nan plug-in hub to your 2.4-GHz Wi-Fi, spot nan 3 information detectors successful apt leak spots, and you are set. You tin brace up to 10 pinch nan hub and configure it to nonstop emails and SMS messages connected apical of app notifications erstwhile there’s a leak. The probes connected nan underside of each detector are rather acold apart, and it takes 2 millimeters of h2o earlier nan siren is triggered. It grounded to spell disconnected pinch a dependable drip connected top, but nan siren sounded arsenic soon arsenic h2o pooled underneath. The siren goes up to 100 decibels, but I for illustration that you tin tweak nan measurement and long for alarms. You tin cancel alarms done nan app aliases by pressing nan buttons connected nan hub. These detectors return CR2 batteries that are bully for up to a year, and there’s an denotation successful nan app erstwhile they die. When I removed a artillery from 1 of them, it took nan app a fewer hours to update and show it arsenic offline. One past downside is that nan hub is circular, truthful it whitethorn artifact adjacent outlets. Support for IFTTT is simply a perchance useful other that could trigger a h2o shut-off aliases a ray to flash reddish erstwhile a leak is detected.

Aqara Water Leak Sensor for $19: This Zigbee sensor is champion utilized pinch Apple’s HomeKit, and you request an Aqara hub (sold separately). The institution makes a bully information camera that doubles arsenic a hub and offers a afloat scope of smart location sensors. These mini information h2o leak sensors are very debased to nan ground, truthful conscionable 0.5 mm of h2o underneath is capable to trigger an alarm. Dripping connected apical won’t group them off, but an iPhone notification is triggered arsenic soon arsenic h2o pools beneath wherever nan probes are. You tin besides person your connected hub play an siren and trigger automations done HomeKit. The sensors return CR2 batteries and tin past up to 2 years.

Stitch by Monoprice Water Leak Sensor for $25: This affordable h2o leak detector has a creation that’s akin to our apical pick. The main assemblage is round, pinch metallic feet to observe h2o pooling, and it slots into a bracket for wall mounting. It comes pinch a coin-sized plug-in hold that stretches up to 3.8 feet. Both nan main detector and hold were speedy to sound nan siren and nonstop notifications to my telephone erstwhile bedewed (though nan on-device siren is not very loud). It takes a azygous CR2 battery, displays nan remaining powerfulness successful nan app, and alerts you erstwhile it’s clip to alteration batteries. Unfortunately, nan app is basal and poorly translated. You person to barren nan detector to extremity nan alarm, and it took excessively agelong to pass maine erstwhile it went offline (weirdly, nan offline detector is toggled disconnected by default successful nan app settings, truthful I had to move it on). You tin get this a spot cheaper by buying straight from Monoprice.

Leak Detectors to Avoid

We did not person a awesome acquisition pinch each h2o leak detector we tested.

Swann Leak Alert Sensor for $16: While this battery-powered h2o detector (two AAAs) is affordable, I had a unspeakable clip mounting it up. Your telephone must beryllium connected 2.4-GHz Wi-Fi, but moreover then, it took maine aggregate attempts to connect. Frustratingly, you must region nan screw sheet to reset it, because there’s nary action successful nan app. Alerts came done to my telephone astir a infinitesimal aft I soaked nan sensor, but nan Swann app is slow and clunky.

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