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Humantechnik Radio doorbell transmitter galvanic - A-2465-0

149 €
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Humantechnik LISA Radio Doorbell Transmitter A-2465-0

Humantechnik radio LISA systems are optical aids for hard of hearing and deaf people. Signals such as the doorbell, telephone ringing or smoke detector are converted into optical pulses so that they can be perceived by people with low hearing. Light signaling devices from one system can be combined in any way and easily adapted to your circumstances. For example, you can add a baby transmitter or extend the range in larger homes by adding a repeater.

This doorbell transmitter is the radio transmitter for the galvanic connection to the front doorbell. When someone rings the doorbell, the signal is picked up and converted into a radio signal. This signal is immediately picked up by the available receivers and you are alerted by vibration alarm or light flash. An LED on the receivers will indicate for the next 22 seconds that a visitor has arrived at your home.

The door transmitter is suitable for connection to 2 different doorbell signals. Apartment door and front door in apartment buildings. Installation requires a little manual skill and is done directly to the different doorbell systems. The control is only suitable for connecting low-voltage doorbell systems.

The input voltage must be at least 3 volts and must not exceed 15 volts. DC or AC voltage can be connected. You can either operate the transmitter with a battery or order the optional power supply. Alternatively, you can use a door transmitter with an external microphone, which picks up the ringing acoustically and does not continue


  • Door transmitter for human technology radio LISA
  • galvanic connection via bell wire
  • 2 connection sockets for 2 doors
  • personal call button
  • Power supply optional
  • Standing base optional

Technical data:

  • Dimensions: 147 × 50 × 41 mm
  • Color: silver
  • Weight: 145 g
  • Connection type: galvanic
  • Battery life: approx. 1 year (9V block)
  • Additional article number:

Included in delivery:

  • 1x Humantechnik A-2465-0 doorbell transmitter
  • 2x galvanic connection cable (1 meter each)
  • 1x 9V block battery
  • 1x instruction manual

To operate a traffic light system, you need at least one transmitter and one receiver. One transmitter can be combined with any number of receivers. Conversely, a receiver can be used with multiple transmitters. Humantechnik radio LISA systems can be expanded by individual modules at any time. A newly added transmitter is automatically detected.

Please note

Light signal systems for the hearing impaired can also be subsidized by health insurance companies. Upon request, we will be happy to send you a cost estimate that you can submit to your health insurance provider for approval.


We provide end users with a 24-month warranty (excluding batteries and accumulators). Warranty service includes free repair and free return shipping. The warranty is void in case of damage caused by improper handling and repair attempts by persons not authorized by Humantechnik (violation of the device seal).

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