Bell system 4 way audio intercom

BSTL900 series 4 way kit contains: 4 x 801 handset (Dimensions: H 212mm x W 85mm x D 55mm) 1 x SPA1 surface mount entrance panel (Dimensions: H 190mm x W 102mm x D 38mm) 1 x Mod61 speech amplifier 1 x 212 12V AC fused transformer 1 x 203 surface mount electric release (suitable for surface mount night-latch style lock – for flush mount option see related...

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