Placement Suggestions Meshify® Defender Water Shutoff About Defender Water Shutoff Installation Checklist Placement Suggestions Activation Instructions Warnings, Notices, & Warranty FAQs Place your device Within 10 feet of a 120V electrical outlet that is not controlled by a switch On a quarter-turn ball valve located on a domestic water supply line Do not place your device On valves located on piping systems used for fire protection or industrial purposes On valves that cannot open/close smoothly, valves that show signs of corrosion, or valve handles that are damaged or loose On piping or valves larger than 1 ¼ inches If the pipes on both sides of the valve are different sizes Upstream of critical processes that may cause damage due to lack of water (e.g. boiler feed pipes) On PVC or CPVC valves or piping Still need help?Contact Sensor Support at (844) 468-1866 or sensorsupport@hsb.com (Monday–Friday, 8 a.m.–8 p.m. ET), or use our webform below anytime, 24/7. Support Form Meshify is the IoT technology subsidiary of HSB, part of global reinsurer Munich Re. 3500 Jefferson Street #208Austin, TX 78731 © 2026 Meshify Inc. All Rights Reserved. Privacy Policy