Alerting Systems

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  • Bellman and Symfon logo
  • Clarity logo
  • Gentex logo
  • Serene Innovations logo
  • Silent Call logo
  • Sonic Alert logo

What are Signaling Systems?

Signaling systems, or simply signalers, are designed to help notify you of different events, such as the phone/videophone ringing, the doorbell, a baby's cry, motion, weather alerts, smoke alarms, or carbon monoxide detectors. Also known as alerting or notification systems, these devices can alert you to different events through flashing lights, loud audible alarms, and/or vibration.

There are four things to consider when customizing an alerting system:

1. Transmitters:

Which event do you want to be notified of?

You will need to purchase one transmitter for each event you would like to be notified of. Each transmitter is designed to alert you for a specific event; however, some transmitters do work for more than one event, such as a door and phone transmitter. For example, if you want to be alerted when your phone rings and when baby is crying, you would purchase one phone transmitter and one baby cry transmitter.

2. Receivers

How many rooms do you want to be notified in?

For each room you want to be notified in, you will need to purchase a receiver. For example, if you wanted to be alerted in the bedroom, living room, and kitchen, you should purchase three receivers. Some brands also have portable receivers (such as pagers and watches) that you can bring with you wherever you go in your home. Each receiver will work with all your transmitters, as long as they are the same brand.

3. signaler illustrationsCompatibility

To ensure compatibility we suggest purchasing the same brand of signaling components. Don't mix apples with oranges! For example, if you already own a Sonic Boom SB1000ss alarm clock, buy signalers made by Sonic Alert.

4. Technology

Basically, there are two types of technology available for alerting systems. They can be either:

Radio Frequency (RF) Technology:

This technology sends a signal from your transmitters to your receivers through radio waves. It is ideal for both home use and for people who live in apartments, dorms, or other types of public housing because built-in dip switches can be adjusted to ensure your system will not interfere with a neighboring system. The following brands are radio frequency: Bellman & Symfon, Clarity/Ameriphone, and Silent Call.


Line Carrier Technology:

This technology sends a signal from your transmitters to your receivers through your home's electrical circuits. There is not any specific information about this technology that you need to be aware of. Sonic Alert uses line carrier technology.


Why are signalers so important?

Signaling systems not only allow deaf and hard-of-hearing people become more independent, they may also save lives. Watch the video to your right and see why alerting devices are so important!

At Assistech we carry a wide range of visual, vibrating, and audio signalers for the deaf and the hearing impaired, including the newest T3—or Temporal 3—smoke detector technology.

Getting Started

Use the Quick Guide below or consult our Product Wizard to find the right alerting device(s) for you!

Quick Guide to Alerting Systems

SIGNALER TYPES Sonic Alert Serene Innovations Clarity Bellman Symfon Silent Call Gentex Other Brands
Audio Alarm   Audio Alarm by Serene Innovations Audio Alarm Signaler by Clarity   Audio Alarm by Silent Call    
Baby Monitor Baby Monitors by Sonic Alert Baby Monitors by Serene 

Innovations Baby Monitors by Clarity Baby Monitors by Bellman & 

Symfon     Baby Signaler - Other Brands
Carbon Monoxide         Carbon Monoxide Detectors by Silent Call   Carbon Monoxide Detectors - Other Brands
Doorbell Doorbell Signalers by Sonic Alert Doorbell Signalers by Serene Innovations Doorbell Signalers by Ameriphone Doorbell Signalers by Bellman & 

Symfon Doorbell Signalers by Silent Call   Doorbell Signalers - Other Brands
Door Knocker   Door Knockers by Serene 

Innovations         Door Knocker Signalers - Other Brands
Door Opening       Door Opening Signalers by Bellman 

& Symfon Door Opening Signalers by Silent Call   Door Opening Signaler - Other Brands
Driveway             Driveway and Garage Alarms - Other Brands
Email / IM Email / IM Signalers by Sonic Alert           Email / IM Signalers by Other Brands
Fall Detection         Fall Detection Signalers by Silent Call   Fall Detection Signalers by Other Brands
Fire Alarm   Fire Alarms by Serene Innovations     Fire Alarms by Silent Call   Fire Alarm Systems - Other Brands
Intercom   Intercom Signalers by Serene 

Mail Alert             Mail Alert Signalers by Other Brands
Motion Sensor   Motion Sensors by Serene 

Innovations Motion Sensors by Clarity        
Multi-functional Universal Signaler by Sonic Alert     Universal Signaler by Bellman & Symfon     Multifunctional Signalers - Other Brands
Pagers   Personal Pager by Serene 

Innovations Personal Pagers by Clarity   Personal Pagers by Silent Call   Personal Pagers - Other Brands
Smoke Detectors       Smoke Alarm Signaler by Bellman 

& Symfon Smoke Detectors by Silent Call Smoke Detectors by Gentex Smoke Detectors - Other Brands
SMS Alerts SMS Signalers by Sonic Alert SMS Signalers by Serene Innovations         SMS Signalers by Other Brands
Telephone Phone Signalers by Sonic Alert Phone Signalers by Serene Innovations Phone Signalers by Ameriphone Phone Signalers by Bellman & 

Symfon Phone Signalers by Silent Call   Phone Signalers - Other Brands
Weather Alert   Weather Alert Signalers by Serene 

Innovations     Weather Alert Signalers by Silent Call   Weather Alert Signalers - Other Brands
SIGNALER TYPES Sonic Alert Serene Innovations Clarity Bellman Symfon Silent Call Gentex Other Brands


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Sonic Alert Clock with Bed Shaker and Phone Signaler (SBT425SS)
  • Alarm clock with telephone signaler
  • Built in flashing lights
  • 12-volt bed shaker
  • 113 db adjustable volume
  • Battery backup
The Sonic Alert Clock with Bed Shaker and Phone Signaler is a bedside alarm clock with telephone signaler, built-in flashing lights and bed shaker. Ideal for the hearing impaired, this multi-functional alarm clock also features a built-in telephone signaler, so you will never miss a call. Built-in flashing lights alert you to the telephone ringing and alarm, makes this multi0functional alarm clock the perfect hearing impaired aid. The alarm clock
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Sonic Alert Sonic Boom Alarm Clock with Bed Shaker SB1000SS (SB1005WV)
  • Extra-loud 113 dB alarm with adjustable tone and volume control plus vibrating bed shaker
  • Lamp connection provides for a flashing light wake-up alert option
  • User-selectable alarm duration 1-59 minutes and snooze time 1-30 minutes
  • Battery backup maintains time and alarm setting in the event of power failure (9V battery not included)
  • Includes: Manufacturer 5-Year Limited Warranty and built-in receiver for other Sonic Alert signalers
America's Number 1 selling alarm clock for the Deaf and Hard of Hearing, the Sonic Boom Alarm Clock with Bed Shaker wakes even the deepest sleeper.
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Sonic Alert Sonic Link Deluxe Remote Receiver (SA201)
  • Receive signals from Sonic Alert signalers
  • Outlet to flash lamp
  • On/Off switch to allow lamp to be used for signaling and room lighting
  • Easy installation - just plug it in
  • U.L. Listed
This Sonic Alert Sonic Link Deluxe Remote Receiver with its sleek, modern case will alert you by flashing any lamp that is plugged into its innovative Pluglet (Plug-outlet). Just plug this hearing impaired living aid into any AC outlet, and plug lamp into receiver. The Pluglet alerting device allows you to keep your table uncluttered by unsightly lamp cords. The Sonic Alert Sonic Link Deluxe Remote Receiver signaling lamp can be used for normal room lighting by using the lamp on/off switch. There is also an indicator light to remind you to turn on the attached lamp. The alerting unit receives signal from any Sonic Alert signalers and then alerts you by flashing the lamp. Sonic Alert Sonic Link Deluxe Remote Receiver Product Details: Warranty: 5 Years. U.L. Listed. Product dimensions (imperial): 1.25 inch H x 4 inch L x 2.5 inch W Product dimensions (metric): 31.75 mm H x 101.60 mm L x 63.50 mm W Package dimensions (imperial): 2.25 inch H x 6 inch L x 5.25 inch W Package dimensions (metric): 57.15 mm H x 152.40 mm L x 133.35 mm W.
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Sonic Blink- Receiver with Strobe Alert (BL300)
  • Receives signals from all sonic alert signalers
  • Built-in high intensity strobe light
  • Easy to use-just plug in
  • Space Saver-use in places where you would not use a lamp
  • 5 yr manufacturer warranty
The Sonic Blink Receiver is a hearing impaired aid that will alert you by flashing a strobe light when it receives a signal from a Sonic Alert Transmitter (phone ring, baby cry signaler or doorbell signaler.) This hearing impairment aid is great to use in places where you would not use a lamp such as bathrooms, kitchens, dining rooms and hallways. The Sonic Blink Receiver will even work if placed behind your furniture. U.L. Listed. Warranty: 5 Years. Sonic Blink Receiver Product Details: Product dimensions (imperial): 1.25 inch H x 4.25 inch L x 2.75 inch W Product dimensions (metric): 31.75 mm H x 107.95 mm L x 69.85 mm W Package dimensions (imperial): 3.5 inch H x 4.5 inch L x 3 inch W Package dimensions (metric): 88.90 mm H x 114.30 mm L x 76.20 mm W
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