The Zigbee Hub Kits And 4-Pack Smart Water Leak Detectors From, And Basement. Product Details Know More Before Use: The included smart hub only works with 2.4GHz WiFi and provides an internet connection for the devices. WiFi connection gateway has a stronger and more stable signal transmission lets you connect with multiple ZigBee smart devices simultaneously (128 max). The package comes with 8 AAA batteries(included). Affordable and Effective: Our water leak detectors for home is highly sensitive and emits a 60 dB alarm sound when it detects water leakage or flow. You can hear it even if you're in the basement or garden. This helps you turn off the water in time to prevent costly damage. 24/7 Protection: The smart technology provides round-the-clock monitoring to detect water alarm and sends push notifications to your phone when an alarm goes off. This means you can take action even when you're away from home. IP67 Waterproof and Durable: Our water alarm leak detector has a completely sealed IP67 waterproof design, making it ideal for use in high-moisture areas like toilets, water heaters, dishwashers, sinks, and bathtubs. Smart Home Automation: Treatlife water leak sensor can be linked with Treatlife's smart devices using a faster, more stable, and energy-saving Treatlife ZigBee gateway. This allows you to explore endless possibilities and achieve more home automation and comprehensive protection. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.