Seco-Larm E-931CS22RFCQ Wireless Reflector Beam Entry Alert Door Chime. No Batteries, Wired Entry Alert


The BALERT-W is a wireless break beam sensor-based entrance alert kit that is easy to set up and easier to maintain.  The most common use of this system is to use the system to monitor a doorway.  When a visitor passes through the monitored zone, the speaker is triggered.

SKU: BALERT-W Category:

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Download user manualGTIN: 635963264376

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Accessories & Addons

What is a Wireless Break Beam Sensor Alert Kit?

The BALERT entrance alert kit has been around for as long as I can remember. It’s a very popular product because it’s a simple, but effective way to monitor a door or hallway. In many cases, customers who liked the functionality of the BALERT didn’t purchase the product because it was wired…from the emitter box to the speaker.

Now, we have a wireless version of the BALERT, which is the BALERT-W (“W” for Wireless) is the Seco-Larm E-931CS22RFCQ. You get the same reliability of the photo beam reflector-based product with the added benefit of a wireless transmission from the emitter to the speaker.

Here’s how this break beam sensor-based kit works:

The BALERT-W is the Seco-Larm E-931CS22RFCQ. The kit comes with three (3) main components: a sensor that emits an invisible beam to a reflector, a reflector, and a wireless speaker.  To understand how the product works we will use a common doorway as the area we want to monitor.  On one side of the door, we will mount the wireless sensor (plugs into a standard wall outlet) and on the other side of the door, we will mount the reflector.  The sensor will send an invisible beam to the reflector.  As long as that beam is reflected in the sensor the system is silent.  When that beam is broken, which means the beam has not reflected to the sensor, the sensor is triggered and it then sends a wireless signal to the speaker (speaker plugs into a standard wall outlet).

Seco-Larm E-931CS22RFCQ with Active Beam
Seco-Larm E-931CS22RFCQwith Active Beam

Here’s what’s in the BALERT-W (Seco-Larm E-931CS22RFCQ) Kit:

  • Waterproof reflective sensor (transmitter)
  • Wireless Speaker
  • Reflector
  • Two power adapters (one for sensor, one for speaker)
  • Three mounting brackets
  • Optional Wall Mount Bracket is available for separate purchase
BALERT-W Seco-Larm E-931CS22RRCQ Entrance Alert Kit
BALERT-W Seco-Larm E-931CS22RFCQ Entrance Alert Kit

Break Beam Kit Features:

  • Max distance from the sensor to the reflector is 22 ft.
  • Wireless range, from the sensor to the speaker is “up to” 328 ft. (100 m).  Please note, this is a line of sight range.  Building materials will interfere and possibly reduce the range
  • Speaker and sensor are powered by included plug-in transformers
  • Adjustable volume on speaker up to 90 dB
  • Sensor and reflector are outdoor rated 32 F – 122 F
  • Sensor can pair with an unlimited number of speakers
  • Speaker can pair with up to 5 sensors
  • Speaker will make a chime or ALARM sound
  • Alarm output duration is 3-30 seconds

We would also recommend two other choices:

  • The ERA-PIR-SPK kit is a passive infrared sensor typically mounted over the door.  When a visitor passes through the zone, the speaker inside the sensor plays a chime sound.
  • The EZ CHIME – a purely mechanical entrance alert.
Weight 3 lbs
Dimensions 4 × 4 × 4 in


Wireless Features

Expandable, Volume Control




1 Year



Battery Or Plug In

Plug-in Receiver

Kit Or Accessory


Customer Reviews

Based on 24 reviews
P.P. (Kansas City, US)
Love it!

We have a little cat shelter in a busy shopping mall. Now, when working in the back area, we can hear when our customers come in. Couldn’t be happier!

T.G.F.G.a.S.L. (Grants Pass, US)
Door Sensor

This wireless reflector works well, and is nice that it will only notify you once when people are standing in the way instead of continuing to go off. Only think it seems maybe a bit sensitive to reflective light, so we might get a "cover" to try to shield it and see if that works.

G.M. (Clermont, US)
It's doing a great job

We had a 20+ years door buzzer & it finally quite working.
This new product is 1/10 the size & with a remote speaker we mounted in the rear room. GREAT PRODUCT...

S.H. (Port Orange, US)
Very happy!

This was purchased for the front door of our 1500’ sqft shop that is usually open. Works great The speaker was placed in the back work area. Chime is loud and clear to alert when someone walks in. Perfect for our needs!

F.G. (Ontario, US)

Thanks for the door chime so far it’s been very effective , Eazy smooth installation,
Great deal for the price .

S.A. (Québec, CA)
Wired Entrance Alert Chime Using Reflector Beams

I installed this system last week. Easy to install, works perfectly

B.W. (Crystal Lake, US)
Works great

Product arrived quickly and was a fairly easy installation. Works great so far.
One thing I'd like to add is to have the ability to cant the reflector to allow for a diagonal beam.

Otherwise I would recommend this product and order it again.

J.S. (Port Saint Lucie, US)

Every thing was a great experience..thank you

S.S.C.M.I.C.C.M. (Freeport, US)
Exactly what we needed!

Our store (in a shopping mall) had a little battery powered motion sensor that would be set off by people walking up the steps 20 feet away. It was a constant annoyance that would as often as not go off when nobody was there, but be silent when people walked in.

The BALERT Photo Beam Reflector Kit was easy to install - I skipped the mounting plates (tile walls) and used velcro adhesive strips, set it up in under 5 minutes, and it works perfectly!

My only regret - not getting the add-on speaker to run a line to the back room. But we're adding that ASAP!

B.J.P. (Fond du Lac, US)
Works Great

It was exactly what we were looking for! Easy to install and works great!

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