The CIS4 Series is a 2-gang, vandal resistant call-in station with integrated speaker/microphone consisting of a 2.5" square frame loudspeaker with a 2.35 oz. ceramic magnet and a phenolic impregnated, moisture resistant cone - a 1W-25V transformer, and a momentary (normally open) push-to-call button.

Three (3) interwoven, steel security screens are mounted between the 12 guage brushed stainless steel faceplate and loudspeaker. Tamper resistant, 6-32 x 1" 'pin-in-torx' hardware included.