These systems use the components maufactured by Ultratec. Ultratec is a well known manufacturer of Alerting devices and TTY's. They stand behind their name.

How to decide which signalers will work best for your needs:

I. To what sounds do you want to be alerted?   

If you want to know when...	You'll need a:
The telephone rings	Telephone Ring signaler
Someone is at the door	Doorbell Ring Signaler
Household sounds, ( baby cry, oven timer, dryer washer, microwave, etc)	Sound Signaler

II. Where do you want to be alerted?

If you want to be alerted...	You'll need:
Only in the room where the sound occurs...	Just the signaler which must be used with at least one Remote receiver
In multiple rooms thoughout the home?	Remote Receiver(s) for each room in which you want to be signaled

III. Choosing between DESKTOP and WALL-MOUNT Signalers

Do you want to use the lamp ONLY for signaling/alerting i.e. not for reading or other uses?

Yes. For signaling/alerting only.	Choose a WALL-MOUNT model: Less expensive choice Plugs neatly into an electrical outlet, typically on a wall or hidden from view
NO, the lamp will be used for room lighting and/or reding	Choose a DESKTOP Model  Built in switch lets you easily turn the lamp on or off Sits within easy reach to conveniently operate the lamp Can sit on a coffee table, bookshelf, or counter, far away from the electrical wall outlet Indicator lights let you quickly see what the sound is
In rooms where lamps are not traditionally used: i.e. bathroom, hallway, garage, etc	Choose a WALL-MOUNT model plus an ADD-ON STROBE: Add-on Strobe plugs into wall-mount model to alert you in rooms where a lamp traditionally is not used (i.e. a bathroom, hallway or garage) Ideal for dorm rooms or one-room apartments

IV. Choosing the Right Signaler for your DOORBELL

Is the doorbell button or chime within close distance to an electrical outlet, say, within 30 feet?

Yes, the doorbell is located within 30 feet of an electrical outlet.

Choose the Simplicity Doorbell Signaler LT (wired model):  Less expensive choice Signaler plugs directly into wall outlet near the doorbell or doorbell chime Can be connected to either the doorbell or your doorbell chime with simple wiring (wire included)

No, the doorbell is not located within 30 feet of an electrical outlet.

Choose the wireless Simplicity Doorbell Signaler LTW:   No wiring needed between doorbell/chime and signaler Provides a visual alert in addition to the existing audio alert Includes a small transmitter that connects easily to your existing doorbell chime. When the doorbell button is pushed, the existing chime sounds (providing an audio alert) and the transmitter activates the Signaler, which sends a visual alert (flashes your light or strobe and activates Remote Receivers).