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


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.

SKU: LRA-MSTX Category:

More Info...

Download user manualGTIN: 635963263560

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Accessories & Addons

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 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 sight) to a compatible receiver such as the LRA-DCRX and LRA-VPRX.
  • Manufactured by Safeguard Supply
  • 1 Year Manufacturer’s Warranty
Weight 0.8 lbs
Dimensions 1 × 2 × 2 in



Safeguard Supply

Wireless Range

1000 ft.


1 Year

Wireless Features

Expandable, Multi-Zone


Safeguard Supply – LRA Series

Kit Or Accessory

Transmitter Only


Customer Reviews

Based on 233 reviews

Safeguard Supply LRA-PLUG Plug In Adapter For LRA-DCRX Receivers

R.D.o.P.L. (Seagoville, US)


C.C. (Redding, US)
Problem solved

I couldn’t get the ringer and receiver to pair. I quick call solved the mystery. Replacement sent immediately. Great service. Bell working fine.

G. (Fullerton, US)
Great product that's backward compatible with prior purchase

I bought your company's LRA-EX1000 doorbell extender kit a few years ago and liked everything about it except having to replace the 3 "C" batteries (which gets expensive). I was about to buy the $20 AC adapter and saw the LRA-DCRXS was $35 so I bought it instead. The LRA-DCRXS works great unlike the junk I had bought from a big box store.

• small size
• plugs directly into AC
• compatible with prior purchase (no planned obsolescence or incompatibilities like products from big multinational corporations)

• none

R.C. (Christiana, US)
Awesome Product

I got this product to replace an old, wired doorbell. It works FANTASTIC. Highly Recommend.

C.M. (Yankton, US)
Loud and long flashing

Best invention ever for the hard of hearing. Worth every penny. We can't hear the doorbell in the basement or our room addition. This takes care of it. Easy to set up and use. Great product.

J.Z. (Vernon Hills, US)

Excellent product. I couldn't figure out how to pair a second unit. My friend did it in less than a minute! It does what I want, which is, an extended alarm & flash in my basement studio, where I spend a lot of time.

G.M. (Ladera Ranch, US)
Easy to See, Easy to Hear

As a retired mature person, hearing and seeing are naturally affected. The system allows us to both see and hear at the same time. It is a comfort to be assured that when someone is at the door, we know it.............great system and perfect for our needs............

M.M. (Logan, US)
Good system

Long range provides security for outbuilding.

M.W. (Chicago, US)
Very happy with our new driveway alarm!

We are preppers, and the 1800 alarm gives us plenty of notice when someone enters our property, a secondary motion sensor tells us if someone is prowling around our property with the ability to add up too four motion sensors it gives us plenty of options to add more security.

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