Sensors  MOTION DETECTORS
4275EX-SN
V-Plex Mirror PIR Motion Sensor
• Range: 35' x 45' (11m x 14m) coverage pattern
• Built-in remote point module with serial number
addressing
• Optional long range mirror included
• Extremely low current
• Tampered cover
•
ALSO AVAILABLE:  
4275EX
- with DIP switch addressing
4278EX-SN
V-Plex Quad Mirror PIR Motion Sensor
• R
ange: 40' x 50' (12m x 15m) 
coverage pattern
• Built-in remote point module with serial number
addressing
• Alternate polarity quad processing for improved false
alarm immunity
• Horizontal adjustment for flexibility
• Long range mirror included
• Tampered cover
•
ALSO AVAILABLE: 
4278EX
- with DIP switch addressing
V-Plex
By utilizing only two wires, Honeywell’s patented V-Plex polling 
loop technology provides point identification to central monitoring
stations, reduces wire runs and offers economical expansion of
peripheral devices.
PIRs – V-Plex
72
www.honeywell.com/security
Top View 
Side View 
Top View 
Top View Wide Angle Mirror
Side View Wide Angle Mirror
Top View Long Range Mirror
Side View Long Range Mirror