Check the listing for details. eufy Security Water and Freeze Sensor with Remote Alerts Waterproof App Control. Condition: New. Listed at 34.99 USD. eufy Security Water and Freeze Sensor with Remote Alerts, IP65 Waterproof, 2-Year Battery Life, HomeBase Required, Compatible with HomeBase 2 and 3, Optional 24/7 Protection Service, App Control No installation requiredThere's no need for wiring, just place on the ground to instantly start detecting leaks.When water is detected, the sensor immediately informs HomeBase, which then alerts you through an audible alarm and a real-time phone notification*.Small Size, Long LifespanWith space-saving dimensions of 2.6 in × 2.6 in × 1.2 in. It provides enhanced water resistance (IP65) while staying lightweight. A single battery (replaceable) can last more than two years.Strong and Stable SignalStable connectivity with HomeBase is achieved through Sub-1G communication. If a leak is detected, it tells HomeBase, which emits a sound or sends a notification* to your phone.Connects with HomeBase 2 and 3HomeBase makes sure you get instant notices* about your home via the app.No Monthly FeeHome Monitoring Service with No Monthly Fee Product Details Instant Notifications*: Protect your home from leaks, water damage, and damage from freezing temperatures. Get notifications if water is detected or if the temperature drops below freezing.East to Set Up: Just place it anywhere you want to detect water or freezing temperatures.Replaceable Battery with 2-Year Battery Life: The single replaceable battery lasts up to 2 years.Stable Connection to HomeBase: Sub-1G connectivity ensures a stable connection to HomeBase 2 or 3 all around the home and yard.One App Controls All: Links to HomeBase and the eufy Security app. Easily get notifications and check the battery status. FAQ Is HomeBase necessary to receive notifications?Yes. The sensor uses efficient Sub-1G communication with HomeBase to maximize battery life. Compatible with both HomeBase 2 and 3. Can we customize the temperature that triggers a notification?No. The sensor is designed to detect when the temperature drops below freezing temperature only. Shipping PolicyPayment PolicyReturns PolicyAbout eufy All products will be checked carefully and packed in good condition before shipping. Item will be shipped within 3 business day after the payment has been received. -- If you buy more than 3 items and your shipping address is in PUERTO RICO, Please kindly request the total invoice before making the payment or we may ask extra payment before sending your order. Because USPS charge more shipping fees for boxes to Puerto Rico. Shipping Service Delivery Time Delivery Weight Range First Class 3-7 Business Days