Passive infrared detector

Product Description

The Optex CX-502 is a commercial-grade wired PIR (Passive Infrared) motion detector designed to deliver extremely stable detection performance across a wide range of indoor security applications. Featuring patented Quad Zone Logic and Double Conductive Shielding, it maintains consistent sensitivity across its full 50ft x 50ft coverage area — even in extreme high or low temperatures — while advanced signal processing filters out common sources of false alarms, such as small animals or curtain movement.

Key Features

• Quad Zone Logic — creates 4 to 8 multi-segmented detection zones, generating sharp, cumulative signals for accurate human-sized target detection while reducing sensitivity to small spot temperature changes
• Double conductive shielding — blocks visible light and RFI so only genuine infrared energy reaches the pyroelectric sensor elements, minimizing false triggers
• Advanced temperature compensation — maintains consistent detection sensitivity across the full operating temperature range
• 85° wide-angle coverage — 50ft x 50ft (15m x 15m) detection area at standard settings
• Optional CL-80N long-range lens — extends detection to a narrower 24m x 2.3m long-range pattern for corridor-style applications
• 82 selectable detection zones — fine-tuned zone coverage for varied room layouts
• Full amplifier protection — short circuit, open circuit, thermal, ultrasonic, and RF protection for stable operation even into reactive or mismatched loads
• Tamper switch — normally closed, opens if the cover is removed, triggering a fault/alarm signal
• Selectable alarm memory and polarity control — configurable to positive or negative logic for compatibility with different alarm panels.

Specifications