ERA-EXTX Door Bell Chime Extender


The ERA-EXTX is a small wireless transmitter that wires into the existing wired doorbell in your home.  When your wired doorbell is triggered, this small device sends an instant radio signal to a compatible ERA receiver, up to 4,000 ft. away.  If you have trouble hearing the existing wired door bell in your home, this will help you hear the doorbell throughout your home.  Please note, the ERA-EXTX needs a compatible ERA receiver (sold separately) to work.  If you are interested in a kit that contains the ERA-EXTX and a receiver, please visit the ERA-EXKIT product page.

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Easily Make Your Wired Door Bell Louder with the ERA-EXTX Door Bell Chime Extender.

If you’re like many people, sometimes you miss a visitor at your door because you cannot hear the wired doorbell in your home. This is especially true for the elderly and the hard of hearing. Most wired doorbells have a decibel rating between 65 – 75 dBA and only play a simple ding-dong sound. There is an easy solution: the ERA-EXTX by Safeguard Supply.

By simply wiring the ERA-EXTX into your existing wired doorbell and purchasing a compatible ERA receiver (ERA-DCRX, ERA-RXPG, ERA-VPRX – sold separately), when a visitor pushes the pushbutton outside your home, the wired doorbell will chime as usual. Still, simultaneously the compatible receiver will play a selected chime sound, vibrate, or flash (depending on the model).

How the ERA-EXTX Doorbell Extender Works

The ERA-EXTX is a small transmitter that wires into your existing doorbell. It wires into the front doorbell, second doorbell, and standard terminals of the wired chime in your home. A high-powered lithium battery with 3-year estimated lifetime power it. When your wired doorbell is triggered and plays its standard ding-dong sound, this small transmitter will send a radio signal up to 4,000 ft. away to the ERA-compatible receiver.

A compatible ERA door chime receiver must be used in conjunction with this transmitter for it to work. Once the transmitter (ERA-EXTX) is programmed to the receiver, the receiver can be placed anywhere in your home or business, enabling you to hear the chime sound when a visitor is at your door. Multiple receivers may be placed throughout your home or office. For instance, place a receiver in your kitchen, upstairs bedroom, or basement and never miss a visitor again. Use it with the ERA-VPRX portable receiver, for example, and work outside or in your workshop to give you mobility. As long as the receiver is within a 4,000 ft. range, it will pick up the signal sent from the transmitter.

How the ERA-EXTX is Wired Into Your Doorbell

Most wired doorbells have three screws, typically called terminal screws, under the wired doorbell cover or cabinet. One screw is for the front door, another is for the “second door,” and a third is for the “common” or “transformer.” The ERA-EXTX has three wires, one for the front door, one for the second, and another for the common. Simply follow the included directions to wire the transmitter to the doorbell.

Diagram of the ERA-EXTX Wired Into a Standard Wired Doorbell

ERA-EXTX Mounting Diagram
ERA EXTX Mounting Diagram

ERA-EXTX Features and Specifications

  • ERA-EXTX ships with the transmitter, double-sided mounting tape, high-powered lithium battery, and user manual.
  • The ERA-EXTX works with traditional 4V-24V wired doorbells.
  • Dimensions of transmitter: 1.75” W x 2”H x 0.75” D
  • Each wire is approximately 9” long
  • Typically mounts next to, on top of wired chime, or inside the chime cabinet/cover room permitting.
  • It works with standard wired doorbells that play a “Ding-Dong” sound and two doors (for example, a front and back door).
  • The range of ERA-EXTX transmitter to compatible receiver is up to 4,000 ft, line of sight. Environmental and building materials will decrease the wireless range.
  • Must have compatible ERA receiver, sold separately:
  • The battery in the transmitter is a CR123A, a high-powered lithium battery with a life of 2-3 years.

Customer Reviews

Based on 517 reviews
R.H. (Panama City Beach, US)
Bright strobe

This wireless doorbell has a fantastic strobe light and works great for my deaf mother in law with AMD. She can't see much, but the strobe definitely gets her attention.

D.d.s.a.b.L. (Litchfield, US)
Doggy Ding Dong Gone.

This door bell system has made our buisness so much better, the dogs don't hear the door bell with the vibration option and makes it so much better for us at the doors and the way the dogs react.
We will be ordering another one for the front of the building.

Thank you for your review! We are glad to hear that the ERA-UTPVR Doorbell has made your business better. We hope you have many years of happiness with this product.

S.D. (Spring, US)
Works great

Have 3 doorbells and 1 receiver and works great

Thanks for the review! We're glad to hear that the ERA-PBTX Wireless Push Button works great.

B.B. (Newington, US)

Great doorbell, easy to install and online customer service answered all my questions and doorbell arrived really quick within 3 days of ordering.

A.B. (Hornell, US)
A Plus

I got my two sets of doorbell/ receivers. I was somewhat worried about pairing them as I wanted either sender to trigger both ringers and I’m not a techie. The Sayles land assured me, when I bought them, that if I had any trouble, I could call them and they could talk me thru it. Upon receiving them I read the instruction once over and quickly paired them, without calling for help. Extremely easy for a 76 year old to set up and boy do they ever work nice. No muss, no fuss. The way you wish everything worked. Thank you for a great product. Alan.

Thank you for your kind review of our ERA-DCKIT Door Bell for Hearing Impaired. We're glad to hear that you're happy with the product and that it was easy to set up. We hope that you'll continue to use it to make your life a little easier!

J. (Boring, US)
Great Product

I have 3 sets of these motion detectors, including base station, positioned all over my property. Very few false alarms. Always warns me when someone climbs my fence, a car is coming up my driveway or anything moving where I want to know something is moving.

We're so glad you're enjoying the ERA-DSTX driveway sensor! We highly recommend these sensors for anyone looking to keep an eye on activity on their property. Thanks for the great feedback!

f.r. (Lawton, US)
As advertised


C.H. (Pinehurst, US)

Great product

J.W. (San Antonio, US)

Have been looking for over several years for a way to alert the organist that a wedding party is ready for the procession of the Bride... The organist is not able to see the isle entrance. The ERA-RXPG Long-Range Wireless Receiver by the organ works perfectly and the push button in the back was the solution...

Thank you for your review of the ERA-DCKIT Wireless Door Chime Kit. We're glad to have found a solution to your problem.

J.M. (Crescent City, US)
Great value, everything was flawless

From the purchase process to delivery, set up, and installation, all were excellent. The products arrived quickly and were well packaged. The instructions were very simple and user friendly. Everything worked well and as expected. First rate product and service.. All aspects appear to be well designed and robust. Looking forward to years of use. Thanks, John Murphy

Thank you for writing this review! We're glad to hear that you're pleased with the ERA-DCKIT Wireless Door Chime Kit and the great value it offers. We're happy to have helped you make your purchase and we're excited to see how you use it in the years to come. Thank you again for writing this review!