Edwards EST SIGA-PHCD Intelligent Multisensor

NOTE: This part is discontinued by the manufacturer. Replace with: SIGA-OSHCD. The Edwards EST SIGA-PHCD is an intelligent addressable multisensor detector for Signature Series loops. It combines photoelectric smoke, rate-of-rise heat with a 135 °F fixed threshold, and a monitored CO element for broad fire and CO coverage. On-board processing with drift compensation and self-checks helps cut down nuisance alarms, with selectable sensitivity (including day/night) and a clear green/red status LED. Key Specifications: Type: Intelligent addressable multisensor Core Function(s): Photoelectric smoke; rate-of-rise heat with fixed 135 °F; supervised CO Loop/Protocol: Signature Series SLC Power: 15.20 to 19.95 VDC Indicators/UI: Bi-color status LED Operating Range: 32 to 100 °F; 0 to 90% RH, non-condensing Notes: CO sensor service life 10 years or until panel end-of-life indication Compatible Bases & Accessories: SIGA-SB – Standard base SIGA-SB4 – 4-inch standard base with trim skirt SIGA-RB – Relay base SIGA-RB4 – 4-inch relay base with trim skirt SIGA-IB – Fault isolator base SIGA-IB4 – 4-inch fault isolator base with trim skirt SIGA-AB4G-LF – 520 Hz low-frequency sounder base SIGA-AB4GT – Audible base with temporal pattern capability SIGA-TCDR – Temporal pattern generator for fire and CO tone separation SIGA-LED – Remote alarm LED (for SB/SB4 bases) SIGA-TS4 – Trim skirt for 4-inch bases System Compatibility: Signature Series control panels using a Signature loop controller.