Frequently Asked Questions About Wireless Chimes, Doorbell, & Entrance Alert Products

Push Button 1 is programmed to Zone 1 on Receivers A, B, C and D (each of the four offices have their own receiver).  When someone presses push button #1,  it will trigger receivers A, B, C, and D to play the "Ding-Dong" sound.  So each office with their own receiver will hear "Ding-Dong" and know it is for the front door.

Push Button 2 is programmed to Zone 2 on Receivers A, B, C and D (each of the four offices have their own receiver).  When someone presses push button #2, it will trigger receivers A, B, C, and D to play the "Westminster" sound.  So each office with their own receiver will hear "Westminster" and know it is for the back door (push button #2).

Push Button 3 is programmed to Zone 3 on Receivers A, B, C and D (each of the four offices have their own receiver).  When someone presses push button #3,  it will trigger receivers A, B, C, and D to play the "Car Horn" sound.  So each office with their own receiver will hear "Car Horn sound" and know it is for side door 1 (push button #3).

Push Button 4 is programmed to Zone 4 on Receivers A, B, C and D (each of the four offices have their own receiver).  When someone presses push button #4,  it will trigger receivers A, B, C, and D to play the "Siren" sound.  So each office with their own receiver will hear "Siren sound" and know it is for side door 2 (push button #4).

It's much easier to use a wired doorbell push button with a wireless receiver using the LRA-EX1000 Extend a Chime.

However, with a little ingenuity, we can add a wireless push button to your current wired chime. To do this, we are going to use the ERA-UTDCR Long Range Wireless Door Chime Kit by Safeguard Supply.

The wireless push button we will use is the ERA-UTX. When triggered, this push button will cause the ERA-DCRX wireless receiver to chime. On the back of the ERA-DCRX is a c-form relay. We will use the section labeled "Relay"



Ch102 Mech Wired Doorbell Mechanics

Assuming you want to put this wireless push button on the front door, open the cover of your wired doorbell and remove the wire for the "front" door.


There are ways to cover multiple entrances when using a doorbell system. Click below to read the answer to the question.

When we talk about using doorbell buttons for different doors we are typically referring to changing the tune a receiver (or multiple receivers) play when a paired button is pressed. Each manufacture has a slightly different way to change the tune the receiver will play and you need to consult the manual or the customer service department for that manufacturer and ask.
Yes, almost all wireless doorbells and door chimes allow for different sounds or melodies to play depending on the button that sends the signal. The Carlon/Dimango brand is one of the easiest to program. All of their wireless chime products will follow this same procedure.

You can program the buttons for different sounds by pressing the small "dimple" on each button and selecting the sound you want to hear for that particular button. Very easy!

For example, the RC4120 has 13 different sound options available, so if you want to cover 13 different doors you would need to purchase 13 push buttons.

Honeywell typically has a different approach. For their products, you typically change the tune on the receiver and ensure that particular tune is pair with a particular push button.

We have an extensive article on doorbell sounds and melodies. Click that link to learn more about specific sound and some of our products.

Wired doorbells in your home are low-voltage devices. A wired doorbell transformer transforms the power from 120V to 16V so it may be used by your wired doorbell. Virtually all wired doorbells will use 16-volts, and most transformers are 16V. The wattage, or VoltAmps is the difference between most wired doorbell transformers and you want to make sure you wired chime has enough wattage to serve the system. Having an undersized transformer will cause it to burn out.

DH90516V10VAIdeal for up to one doorbell, chime, buzzer, or bell.
DH9108V-16V-24V10VA and 20VATri-voltage transformer, ideal for up to two chimes.
T161016V10VAIdeal for one chime w/ bell wire run less than 50 feet.
T163016V30VAIdeal for multi-chimes

This depends on the type of sensor the driveway alarm uses. There are four basic types of driveway alarm sensors:

  • Passive Infrared Sensor (PIR):These are the most common type. Passive infrared sensors are triggered when a combination of heat and movement are detected in the monitored zone. This means a car, truck, person, or any animal will trigger the sensor IF it passes through the monitored zone.
  • Magnetometer Bases Sensor:These sensors are designed to pick up automobiles only and they work when heavy metallic objects are detected in the monitored zone. The sensor typically has a probe that is buried just under the driveway or parallel to the driveway. When a car or truck drives through the zone, the probe detects the change in the magnetic field and triggers.
  • Pneumatic: Do you remember the old gas stations that had a rubber hose stretched across the entrance? It would ring a bell as the car rolled over the hose. This type of sensor is called a pneumatic sensor. When a heavy cars rolls over the hose, the change in air pressure inside the hose triggers the sensor.
  • Break Beam Sensor: These sensors work in a pair and when someone, or something passes between the pair of sensor, they detect that the beam between them was broken and are thus, triggered.

Yes, we have many wireless doorbell and wireless notification systems that work well for the hard of hearing. These products will also work well for loud environments, such as workshops, where it may be hard to hear a normal door chime. In most cases these products will feature an alternative way to notify the user, such as a visual notification. For example, the WC180 is a flashing door chime for the hard of hearing. It's a wireless chime with a strobe light that features a flashing strobe light that is bright and easy to see.

Removing batteries or unplugging the transformer from the LRA-DCRX will not delete any programming.

This applies to the following ERA transmitters (ERA-DSTX, ERA-UTX, ERA-PIR)

-The ERA-DCRX (receiver) has four zone indicator lights that blink when triggered.

-When the battery is low in a transmitter paired to a corresponding zone, the zone indicator LED for that light will blink for 10 minutes when that zone is triggered.

-When the battery is low in a transmitter paired to a corresponding zone, the melody for that zone will play twice (normally the melody will play only one time).

For the ERA-PIR-SPK:  when the battery is low, the melody will play twice, instead of once.

How to Connect An External Device to the C-Form Relay on the ERA-DCRX

*Please note, in most cases it is sufficient to use the 12V DC outputs to connect an external device to the systemFor these instructions on this process, click here.

Each ERA-DCRX receiver has 1 x C-form relay for integrating and connecting external devices.  Unlike the 12V DC outputs (1 per zone) on the receiver, the C-Form relay DOES NOT supply power to the external device you are connecting to it.

Why use the C-Form relay?

The C-Form relay offers advantages and flexibility the 12V DC outputs do not offer.  For example, with the 12VDC output, the device you are powering has to be rated for 12V or less.  In addition, the external device you are connecting has to have a max current below 400mA.  This is not the case with the C-Form relay as it does not supply the power, but rather functions more like a switch.

Another advantage of the relay is that it's not limited to one zone.  There are dip-switches on the ERA-DCRX that allows you to associate the device on the C-Form relay with any combination of the four zones.  Let's say, for example, you have to push buttons, one for zone one, and another for zone two.  You might want to put a different colored strobe light on each of these zones.  Red on zone one and blue on zone two.  Push button A triggers the zone 1 melody and the red strobe, and push button B triggers the zone 2 melody and the blue strobe. You like the fact that the strobes provide a good visual notification, but want something really loud.  Using the C-Form relay, you add a loud siren or firebell to also trigger when one (or both) of the push buttons are pressed.

How to connect an external device to the C-Form Relay?

In this example, we are going to connect a 12V DC firebell to the relay and make the assumption you have a push button programmed to zone one (1) and another push button programmed to zone two (2).

1) Make sure plug-in transformer is NOT plugged in and ERA-DCRX receiver is NOT plugged in.

2) Flip dip switches 1 & 2 up, 3 &4 down.  This setting associates the C-Form relay with zones 1 and 2.

3) Set duration time.  This will determine how long the external device will turn on.

4) Connect black wire from firebell to the "NO" terminal screw on section labeled "relay."

5) Connect red wire from firebell to left terminal screw on plug-in transformer.

6) Use a wire to connect right terminal screw on the plugin transformer (ignore the center screw on transformer) to the "COM" terminal screw on the ERA-DCRX output section labeled relay.

7) Plug everything back in and start using!


Do you have trouble hearing your current doorbell throughout your home? The Extend-A-Chime is a terrific product and in a nutshell, it will extend the listening range or your current wired doorbell by allowing you to add wireless battery operated or plug-in door chime receivers in other areas of your home.

It works by wiring in a small wireless transmitter into your current wired doorbell transformer and then plugging in your new add-on Carlon brand wireless door chime receivers. Although the product is compatible with a wide range of wired door chime models, there are some we have found not to be compatible.

1800doorbell has verified that the following WIRED doorbell models are NOT compatible with our Carlon Brand Door Bells. These units are the "Musical Record-A-Tune" which requires a micro processor within the circuit board which makes the "Extend-A-Units" continuously ring. Therefore, they are not compatible with RC3200 and the RC3500 Extend-A-Chime products.

Carlon Wired Door Chimes:

  • DH840E/SS840E
  • DH852E/DH853E
  • SS852E/SS853E
  • DH845E/SS845E
  • SS846E/SS856E

We also found that some of the Broan Product Line of WIRED doorbells are NOT compatible either.

Broan Wired Door Chimes:

  • RC305
  • RC306