J.A. Lanigan Elementary School (Farmington Hills, MI; built in 1965 with a gym wing expansion circa late 1990s)
Annunciators/panel:
Original system: Unknown, presumably a National Time and Signal Corporation (Natsco) 2000-series unit
Current system: Natsco 7000-series unit
Detectors:
<System Sensor 2400-series photoelectric units
<One Notifier NP-100R photoelectric unit replacing a broken 2400
Pull stations:
Original system: Unknown, presumably Natsco 3500Ns or 620Ms
Current system: Natsco 541-S t-bars (rebranded Sigcom units) with one in the gym wing expansion protected by an unknown plastic cover
Notification appliances:
Original system: Natsco 411F horns, all of which remain intact albeit disconnected
Current system:
<Gentex SHG horn/strobes
<Gentex GMX strobes
<Natsco SG-C4HSZ horn/strobes (rebranded Gentex units)
<One red Natsco 4" trouble bell (rebranded Faraday unit), most likely replacing an original P804 unit
Other:
<Natsco P806R class change bells from the original system, all of which are still intact
<One white, surface-mount Natsco 6" class change bell (rebranded Faraday unit) in the gym wing expansion
<It is unknown if this school ever used outdoor class change bells, but there are wall-mount square Dukane speakers which may have replaced them