Built to
Last: With one standard household AAA battery in equipment and design of Ultra-Low-Power, the sensor can easily last 1-2 years. which allows battery to be replaced less often, save your time and money.
Reliable After-sales: One Year Warranty & Lifetime Friendly Service. We started to make security products since 2004, so we have confidence on the quality of every sold unit. We will never let you down, grab your door dinger now!