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Telephone ring detector with relay output kit.
Simply connect in parallel with phone line powerful led flashes when phone rings the unit will feature a relay output if connected to a 12vdc power supply relay output.
Its ideal for the hearing impaired or for when you need to turn off the telephone ringer but still be able to know when the phone is ringing.
This telephone ring detector with relay output self assembly electronic kit soldering required allows you to attach an external sounder to your phone line that will sound when the phone rings.
Buy telephone ring detector with relay output kit.
Simply connect in parallel with phone line powerful led flashes when phone rings.
Continuous or on off to the rhythm of ringing of the telephone complete with enclosure great for noisy environments for the hearing impaired as addional ringer to.
Also available in pre assembled electronic module format order code vm144.
Telephone ring detector kit with relay output features.
Continuous or on off to the rhythm of ringing of the telephone.
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Velleman telephone ring detector with relay output kit k8086.
Velleman k8086 telephone ring detector with relay output.
Buy velleman k8086 telephone ring detector with relay output.
Simply connect in parallel with phone line.
Great for noisy environments for the hearing impaired as additional ringer to replace existing ringer.
The circuit also includes a relay output so that you can connect an external device such as a lamp for better visibility.