Check the listing for details. LeakSmart Zigbee Range Extender 1. Condition: Open box. Listed at 69.99 USD. LeakSmart Zigbee Range Extender. Notes from Seller:NOTE: THIS ITEM REQUIRES THE USE OF THE LEAKSMART HUB IN ORDER FOR WATER SHUT-OFF OR PHONE NOTIFICATIONS OF A WATER LEAK. Item is from extra inventory that was ultimately never installed in customer's home. Looking to downsize storage and selling of this overstock of inventory. All Items have been opened up, unboxed, tested, then factory reset and ready to be paired to user's smart phone via the LeakSmart app. Item was very easy to set-up. This item is packaged in original manufacturer's box and instruction manual. Item is ready for immediate shipping via USPS mail. Buyer should also note that there is a max of two (2) Range Extenders that can be paired with a Leaksmart Hub. Range Extenders should be placed halfway between the farthest sensor and hub, away from any metal/walls, or any electronics that may interfere with Zigbee communications (routers, wifi, etc). Notes from Manufacturer:The LeakSmart Range Extender increases the signal strength of your LeakSmart Water Sensors. If any of your LeakSmart Water Sensors indicate a signal strength of one bar or less, plug in the LeakSmart Zigbee Range Extender to boost signals from LeakSmart Sensors. Key Features Extends range of the Zigbee network Plugs into any AC outlet Tri-color LED indicator Pairing button on front What's Included One (1) range extender Product Specs Range Extender - Item #: 8850700 Input AC voltage: 100 to 240 VAC, 50/60 Hz Operating temperature range: -4° F to 104° F AC input: IEC type A, ungrounded, non-polarized