ERA-PIR-SPK is a Motion Activated Door Alarm Entry Alert Over Door with Built In Speaker


The ERA-PIR-SPK is a wireless, battery-operated Motion Activated Door Alarm, entrance alert with a built-in speaker that plays a sound when someone passes through the monitored zone emitted by the sensor. Simply install the batteries, mount the sensor above the area you want to monitor (typically a door),  and adjust the angle. Choose one of three sounds you want the unit to chime. This is a great alert to use in a convenience store, shop or other location where you need a gentle sounding device, ideal to hear in a 3,000 sq ft. Perfect easy solution for doorways, hallways, or other areas where a door does not typically stay shut. *Note: for this product, sound comes from the speaker in the sensor.  If you would like to hear the sound in a different location, please visit the ERA-PRDCR kit.

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SKU: ERA-PIR-SPK Category:

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Download user manualGTIN: 719243610944
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ERA PIR Sensor Transmitter scaled 2
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When you need a motion-activated door alarm entry alert over the door or other areas, the ERA-PIR-SPK is an excellent choice.

Simply mount this device over a door or in the hallway, and when motion is detected, the built-in speaker plays one of three selected tones. 

ERA-PIR Entering a Store
SL 40 Mounted Over Door

Entry  Alarm Sound (Motion Activated Door Alarm) from ERA-PIR-SPK Requires No Remote Receiver — Sound Occurs at the Door

Simple to install and requires no maintenance, this unit produces a pleasant chime sound to notify you that someone has entered or passed through the monitored zone.

This is a great product for smaller businesses, retail shops, gas stations, etc., who want to know when a door is opened. Using a Motion Activated Door Alarm Entry Alert Over Door with Built-In Speaker is simple, effective customer service and security at a low cost.

Mount the sensor over the door using the included mounting bracket, adjust the lens angle to cover the area you want to monitor, install the battery, choose the sound (or use default sound), and complete the installation. When the sensor detects the combination of movement and heat (passive infrared, PIR), it triggers the unit to emit a sound.

The product works great for a door that does not stay closed or a hallway area.   This product emits sound from the device using the enclosed speaker.

What makes it different from its sister product, the ERA-PRDCR, is that with THIS UNIT, a signal is not sent to a remote location; instead, the sound comes from the unit itself.

With the ERA-PRDCR, the sensor sends a remote radio signal up to 4,000 ft. away to the chime receiver, where the sound is heard.

See the Illustration Below for Common Use for this Motion Activated Door Alarm:

Motion Activated Door Alarm Entry Alert Over Door with Built In Speaker

When a visitor passes through the monitored zone, the sensor unit will play the chime sound selected at setup (or use the default sound).

ERA-PIR-SPK Motion Activated Door Alarm Chime Product Features:

  • The combination of heat and movement triggers a passive Infrared sensor.
  • Powered by a 9V alkaline battery (not included) that should last approximately 1-2 years based on usage.
  • Sensor/ Transmitter size: 2.5” H x 4.55” W x 1.52 ” D.
  • Low battery indicator: when the battery level is low, the unit will play short “beep-beep” sounds (see user manual for details).
  • Three sounds allow you to use multiple units and determine the triggered location.
    • Ding Dong
    • Ding Dong, Ding Dong
    • 4-Note Westminster Chime
  • The unit is programmed at the factory to play the “ding-dong” sound at the highest level.
  • Four sound levels.
  • Unit reset 5 seconds after the trigger.
  • Mounting height will set the dimensions of the monitored zone (see table below for details).
  • Manufactured by Safeguard Supply.
  • One-year manufacturer’s warranty.

Click Here to Hear the Sound

Mounting the Height of the Entrance Alert Above Door Affects the Coverage Zone

Another feature of this product that distinguishes it from other PIR sensors on the market is the simple, but unique mounting bracket.

The mounting bracket is an aluminum bracket that allows you to tilt the sensor lens approximately 160 degrees to ensure the invisible beam covers the area you want to pick up.

For example, in a retail store, you may want to rotate the unit so that the lens is angled in towards the door to minimize “bleeding” into the area with a lot of foot traffic.

ERA-PIR-The monitored zone expands has the mounting height of the unit increases.  Lower the mounting height to decrease zone size.
ERA PIR Monitored Zone Size

This table shows the size of the monitored zone created.  As the mounting height increases, the width and depth of the monitored zone increase.

The unit was designed to have a narrow zone depth in order to eliminate bleeding into areas you do not want to monitor, and false triggers.

In addition to the size of the zone, adjusting the angle of the sensor angle will also help.

ERA-PIR Sensor Mounting Over Door on Bracket
ERA-PIR Sensor Mounting Over Door on Bracket



1 Year

Wireless Features

Volume Control

Kit Or Accessory

Stand-alone Product

Customer Reviews

Based on 441 reviews

Love this product…works great!

ERA-UTDCR Door Chime

This wireless doorbell is the perfect solution for our front office letting our team know if a customer walks in when my receptionist isn't at the front to greet them. The units arrived excellently packaged and work great!

Thank you for the positive review of the ERA-UTDCR Door Chime! We're happy to hear that this wireless doorbell is a great solution for your front office and that it arrived excellently packaged. We hope that you have a great experience using it and that you recommend it to your friends and family.

J.W. (Washington, US)

Great service.

Thank you for your comment! We're glad to hear that you're happy with our service.

D.O. (Phoenix, US)
Love the different chimes & the lights!

This is the second time we have bought door alerts for our business and this time needed help with customer service. Very friendly and went out of her way to help us.
Thank you,

Thank you for your kind words! We're glad to hear you're enjoying the product and the different chimes and strobe light.

J.O.O. (San Francisco, US)

ERA-PBDCR-STROBE Wireless Door Buzzer for Business

The ERA-PBDCR-STROBE Wireless Door Buzzer for Business is a great way to let visitors know you're open. It's easy to use and is perfect for businesses with multiple locations. Thanks for the review!

E.S. (East Cleveland, US)
Great Doorbell!!!

I was skeptical at first because it is loud in our Machine Shop, but this doorbell is extremely loud and easy to set up. I would definitely buy again and highly recommend!

Thank you for your kind review of the WDK-ERA-KIT Premium Long Range Warehouse Doorbell with Loud Sound. We're glad to hear that you're happy with this product, and we're sure others will be too once they get their hands on it. Thanks for choosing our product!

J.A. (Hampton, US)
Satisfied customer

Great deal literally 10 minute hook up no issues staff is happy everyone can hear the chimes no matter where they are the second receiver solved our issue would definitely recommend

Thank you for your kind review! We're glad to hear that you're satisfied with the product and the great deal you got. We're also happy to hear that staff is happy and that everyone can hear the chimes no matter where they are. We hope this helps you manage your business more efficiently.

R.B. (Bernardsville, US)
A shining star!

So sorry – thought I had responded to this…….

My experience from the start in March with the selection of the appropriate doorbell for my house has been outstanding. Various issues quickly resolved, responses and suggestions to all my questions, and generous replacements of items. I have been really impressed by the excellent service I received from Marilee– which I find to be unusual. She is a star!

Thank you for your kind words! We're glad to hear that you've had such a positive experience with our products and customer service. We're happy to have been able to help you out and we hope you'll continue to use our products in the future.

K.L. (Loveland, US)
Easy installation

As described the installation was very easy. Definitely, a very good value and the remote is easy to program to the desired signal, whether strobe or a variety of sounds, or both.

Thanks for the review! We're glad you found the installation easy and that the value was good. We're also glad you like the remote and the range of the bell.

B.D. (East Fremantle, AU)
Entry Alert

The device remains tamper proof by its good design and by its location above the door frame. It’s also unobtrusive and leaves the side walls free for shelving and pallets. Finally a neat, battery operated, alert with pleasant ring tones that allows businesses to know that customers have entered the premises. Customers also feel welcomed and announced. (Just a nice Ding dong not a damn burglar alarm). How easy!

Thank you very much for taking the time to write us a review.

Yes, this is a great entry alert! It's unobtrusive and battery-operated, so it's great for businesses. The ringtones are also pleasant, so customers feel welcomed and announced. Easy to use!