Kidde | Intelligent Optica Rotary-Addressed Multisensor Smoke and Heat Detector | KIR-OSHD

The KIR-OSHD brings Kidde's Optica advanced optical sensing to commercial fire alarm systems, combining multi-criteria smoke detection with rate-of-rise heat sensing in a single rotary-addressed head. UL 268 7th Edition listed with built-in nuisance rejection that filters out cooking particulates and other common false alarm sources - fewer callbacks, fewer service trips.

Built for the commercial installer

This detector drops onto any Kidde FX Series intelligent fire alarm panel's SLC loop with rotary dial addressing (1-125, up to 250 per loop). Five sensitivity settings, automatic day/night adjustment, and twenty pre-alarm thresholds give you granular control from the panel without touching the detector after install. Two levels of dirty detector warning keep you ahead of maintenance calls.

Key features

• Multi-criteria sensing: advanced Optica photoelectric smoke detection plus rate-of-rise heat detection (15°F/min) and 135°F fixed temperature in one head
• UL 268 7th Edition listed - meets the latest sensitivity and performance standards (also UL 521, CAN/ULC-S529, CAN/ULC-S530)
• Built-in nuisance rejection filters cooking particulates and environmental contaminants to reduce false alarms
• Rotary addressing (1-125) - set the address at the detector, no programming tool required
• Environmental compensation with automatic day/night sensitivity adjustment adapts to changing conditions without manual intervention
• Non-volatile memory retains address and configuration through power loss

System requirements

Requires a Kidde FX Series intelligent fire alarm control panel and a compatible mounting base (KI-SB, KI-SB4, KI-RB, KI-RB4, KI-IB, KI-IB4, or sounder base KI-ABLT/KI-ABDT/KI-ABST). Powers from the SLC loop at 15.20-19.95 VDC. Wall mount 12 in. max from ceiling; heat detector spacing 50 ft. max centers per NFPA 72.