Motion Activated Entrance Alert Sends Signal up to 1,000 Ft. by Safeguard Supply

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Motion Activated Entrance Alert Sends Signal up to 1,000 Ft. by Safeguard Supply


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The LRA-MSTX is an indoor rated passive infrared sensor for use with the LRA series of products. Great for businesses, this sensor will transmit a wireless signal up to 1,000 to a compatible LRA receiver.

GTIN 635963263560 SKU: LRA-MSTX

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State of the art indoor passive infrared (PIR) motion sensor used to detect entrance into a facility.  Works great in areas where interference from metal or concrete may interfere with magnetic door / window contact. This sensor is triggered with a combination of heat and movement are detected by the sensor.   When triggered, the sensor will transmit a wireless signal to compatible receivers in the LRA series such as the LRA-DCRX Strobe Receiver, LRA-VPRX Portable Receiver that Vibrates, and the new arrivals by Safeguard Supply, the LRA-DCRXS Plug-in Strobe Receiver, and the LRA-DCRXA Battery Operated Receiver.

Product Features

  • Small, compact unit: dimensions: 3.56”(H) x 1.93”(D) x 2.48” (W)
  • Powered by  a Powerful, long lasting CR123a Lithium battery (included)
  • Passive infrared sensor detects movement and heat
  • Detects motion up to 20 ft. at /- 30 degrees
  • Transmits signal up to 1000 feet (line of site) to compatible receiver such as the LRA-DCRX and LRA-VPRX.
  • Manufactured by Safeguard Supply
  • 1 Year Manufacturer’s Warranty

Additional information




Safeguard Supply


1 Year

Sensor Type

Passive-Infrared (PIR)

Wireless Range

1000 ft.

Wireless Features



Safeguard Supply – LRA Series

Best Use

Large Homes – Medium Sized Business

Kit Or Accessory

Transmitter Only

Customer Reviews

Based on 206 reviews
A.S. (Vallejo, US)
Love this company--love all the products I've purchased

I recently purchased a doorbell extender for a client of mine. I'd nearly forgotten about the extender when I happened to be doing tax paper clean up and ran across an invoice from a job i did quite awhile ago. With COVID, many of my clients have moved indoors and aren't always able to hear their existing doorbells. These items are perfect, easy to install and work fantastically. The prices are fair and shipping is oh-so-speedy! I'l be ordering plenty more and you should, too!

J.V. (Holland, US)
Excellent service and product

Item came in on time and worked perfect with easy instructions.

R.S. (Kodak, US)
LRA-DSTX Driveway Sensor

Ordered another Driveway alarm sensor received it on estimated time and well packaged. I ordered this new sensor because my Driveway is almost 200 feet to the bottom the first one I installed at the bottom so as to know when someone pulled in and installed this one at the top of my driveway that way I know when someone is here in stead of someone just turning around at the bottom then I can look at my security system and see who it is works great me on a dead end road and with different tones I know exactly what is going on

J.R.S.J. (East Falmouth, US)
Well done - it works GREAT

It is the best of several I have tried in the past including the famous x-10. Simple to set up and works well over 200feet away from receiver. I have put the motion detector in my mailbox out at the edge of the street; now I know when mail has been delivered to my mailbox which I can not see from my home.

J.D.M. (Englewood, US)
Pool Deckl

The product works very well. When out on my pool deck I know when someone pushes my doorbell.

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