【Easy to Install】The sensor and receiver are paired already, all you need to do is attach the transmitter, plug the receiver into any standard outlet, pick a tone you like and here we go.【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.️【A Must-Have】500FT reliable long working range, perfect entry alert chime when door opens for home and business. What about insecure front door, child safety gate, upstairs window, cabinet, basement door...you tell me.【Mute to 120dB】 58 unique long and short tones with 5 adjustable volume levels. The max volume 120dB is loud enough to be heard anywhere in the house, you will never miss out an alert. Prefer not to be disturbed? Set it to mute.【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! Product Description Made for You In the past almost two decades, we are doing all we can to make the best possible quality security products. Every sold unit was strictly tested by our professional engineer team to make sure it can work perfectly. Wireless Doorbell Door Chime for Business Door Open Chime Entry Alert Chime Door Chime, METAK Wireless Door Open Contact Sensor Alarm 500 FT Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering Looking for a door chimes when door opens for business? Want to be notified if toddlers were getting out of bed when they shouldn't? Image a night entry alert chime which can alert you to the insecure door opening, and put off burglars from going any further. No more searching because now you have made it here, our wireless door chime can meet all your needs above! Battery Upgraded, Longer Usage Life 5 Lv. Volumes from Mute to 110dB Expandable System with the Same Brand Parts Door Open Alert for Business and Home for Retail Store to Welcome Customers for Home to Stay Away from Danger for Window to Keep Child in Safe Why it's a Smart Choice for You to Choose Us? 58 Unique Tones From simply "Ding-Dong" to "Merry Christmas", from "Hello Welcome" to "Thank You, Goodbye", there are 58 lovely tones and melodies for you to choose from. Battery Upgraded Most doorbell chimes are using 23A or button battery which can last for like 6-8 month, our transmitter takes one AAA battery which allows it to work 1-2 years per battery, but keep tiny body at the same time. 2 Mounting Options Comes with double side adhesive and screw mounting options, the sensor body can use 3M adhesive on its back, and also has screw holes so you could screw mount it. Speaker Upgraded We don't want to make the chime with poor quality speaker like the cheaper ones do, so we upgrade it and offer you more durable usage life and more comfortable sound. Super Easy to Install in a Few Minutes 1. Plug in the Reciever Don't forget to choose your favor tone. 2. Install the Contact Sensor Mind the 1cm max distance between two parts. 3. Trigger the Sensor Here we go, you made it. Mute Mode The door chime has a mute mode to choose from, don't worry door chime will disturb a sleeping baby. Thanks to the LED will still flash when working in mute mode. What are you waiting for? Grab yours now, inventory won't last long! Track Page Views WithAuctiva's Counter