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


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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.

GTIN: 719243610944 SKU: ERA-PIR-SPK

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When you need a motion activated door alarm entry alert over the door or other area, the ERA-PIR-SPK is a great choice.

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 very low cost.

Simply 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 and choose the sound (or use default sound), and the installation is complete.

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 is not always closed or a hallway area.   With this product, the sound emits from the device itself using the enclosed speaker.

What makes it different than it's sister product, the ERA-PRDCR, is that with THIS UNIT, a signal is not sent to remote location, rather, 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 simply use the default sound).

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

  • Passive Infrared sensor is triggered by the combination of heat and movement.
  • Powered by 9V alkaline battery (not included) that should last approximately 1-2 years based on usage.
  • Low battery indicator: when battery level is low, unit will play short "beep-beep" sounds (see user manual for details).
  • Three different sounds to choose from, giving you the ability to use multiple units and determine which location is triggered.
    • Ding Dong
    • Ding Dong, Ding Dong
    • 4-Note Westminster Chime
  • Unit is programmed at factory to play "ding-dong" sound at highest level.
  • Four sound levels.
  • Unit reset 5 seconds after trigger.
  • Mounting height will set dimensions of monitored zone (see table below for details).
  • Manufactured by Safeguard Supply.
  • One year manufacture warranty.

Click Here to Hear the Sound

Mounting Height of the Entrance Alert Above Door Affects 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 "bleed" into 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.

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

The unit was designed to have a narrow zone depth in order to eliminate bleed 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.

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

Additional information

Sensor Type

Passive-Infrared (PIR)



Best Use

Large Homes - Medium Sized Business
Medium Sized to Large Businesses & Warehouses
Residential Home Use


1 Year

Wireless Features

Volume Control

Kit Or Accessory

Stand-alone Product

Customer Reviews

Based on 8 reviews
A.B. (Boulder, US)


M.W. (Littleton, US)

so far so good. loud enough to hear in my big office

M.A.R. (Littleton, US)
Door bell alarm

This product works wonderfully. My dog can open our door and let himself inside. With the alarm, I know when I need to go close the door to keep the house warm.

T.W. (Davenport, US)
Good business

Nice doing business with you guys there will be a next time soon
Thanks Terrell
God Bless

P. (North Augusta, US)

Easy to install and work great