TELEPHONE RING DETECTOR WITH RELAY OUTPUT KITFeatures:requires assemblysimply 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: 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 replace existing ringer, ... accepts standard adaptor & telephone plug
10.000 mcd led ! connects to PSTN line RJ11 connector supply: 12VDC/100mA adapter (Ex. PS1203) output Contact (NO): 1A max. dimensions: 3.15 x 2.16 x 1.37"
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