|Mini-Breathcall now sold with black clamp only|
Executone, std-and pillow speaker stations. Dukane std (non-pillow speaker station) Picker Briggs std. and pillow speaker stations Edwards - Altec std. station Sylvania std. station Auth - All stations with no holding relays built in...
Normally open contacts, blowing into soft straw mouthpiece makes contact that is maintained until reset button (on top of plug at wall station) is pushed down (depressed). No system relay is required. Electrical plug is rated 1/3 amps 24 volt AC/DC